Best hiking backpacks 2023: from large rucksacks to lightweight daypacks

Collage of the best backpacks
(Image credit: Future)

We've put the best hiking backpacks to the test throughout the seasons to create this definitive guide to the finest options available in 2023. From large capacity gear haulers and winter-ready packs to fast and light daypacks designed for shorter hikes, we've covered countless miles with these excellent packs.

The best hiking backpack for you will depend on your chosen adventures and, to some degree, the season. Fall and winter call for more layers and, if you're venturing above the snow line, mountaineering equipment. This means you'll need more capacity than a standard daypack, ideally upwards of 40 liters.

Likewise, expedition campers will need even more capacity in order to comfortably carry their tents, sleeping bags and camping equipment. Meanwhile, female hikers may prefer the stylings of the best women's hiking backpacks, designed with the female form in mind.

We rate the Gregory Katmai 55 as the best hiking backpack overall, thanks to its stability, comfort and sustainability credentials. However, every pack we feature here is a superb option, so it's important to consider what features and qualities you're looking for in your ideal backpack, before you make your choice.

Excellent all-rounder backpacks for general hiking

Gregory Katmai 55 hiking backpack

Built to carry heavy loads in comfort, the Katmai 55 is a serious gear-hauler, but it’s also been made with sustainability in mind (Image credit: Gregory)
The best all-round hiking backpack

Specifications

Volume: 55L / 3,356 cu in
Weight: 2.12kg / 4lb 10.9oz
Dimensions (HxWxD): 77 x 42 x 32cm / 30 x 17 x 13 in
Sizes: : S/M and M/L torso lengths
Fabric: 210D nylon With PFC-free DWR (40% recycled content) & 420D nylon with PFC-free DWR (45% recycled content)

Reasons to buy

+
Stable and comfortable
+
Fully-featured
+
Can handle heavy loads
+
Sustainable fabrics

Reasons to avoid

-
Not as light as some of the competition
-
Slightly fussy design

A fully-featured trekking and backpacking rucksack with Gregory’s trademark carrying comfort, the Katmai 55 has pivoting shoulder straps and a flexible, wraparound hipbelt that kept our hips and shoulders happy, even when we were carrying heavy loads. The suspended mesh back panel delivers good airflow, and has a Polygiene treatment to inhibit odours after long hours hiking on hot, sweaty trails. 

The brand has also employed partly recycled fabrics in the pack’s construction and calculated the overall carbon cost of the product (the equivalent of hiking 89 miles rather than taking a car journey apparently), which means you can offset the environmental impact of your purchase via your next long-distance walk or thru-hike. Boasting a profusion of pockets and different compartments, we found the Katmai to be a deluxe gear-hauler for those who like to stay organised on their adventures.

Read our full Gregory Katmai 55 review

best hiking backpack: Deuter Trail Pro 36

A lavishly featured rucksack for long days of hiking (Image credit: Jonathan Manning)
The best backpack for hillwalking

Specifications

Volume: 36 litres
Weight: 1.49kg/3lb 7oz
Sizes: One size
Colors : Midnight-lava/Graphite-black

Reasons to buy

+
Excellent pockets
+
Useful attachments
+
Easy access to kit
+
Rain cover

Reasons to avoid

-
Heavier than some

Name a desirable feature on the best hiking backpacks and we think the Deuter Trail Pro can almost certainly tick it off the list. From pole, ice axe and helmet attachments to a lid pocket, two side pockets (one zipped, one stretchy) and an internal valuables pocket, to a wet kit compartment and a rain cover – this pack has it all. A front zip even gives alternative easy access to the main compartment to find gear stowed at the bottom, which we found incredibly useful during our test.

But, its smartest feature is arguably the breathability of its porous foam back pads, and the wide ventilation channel up the spine, which facilitated airflow without compromising our centre of gravity. The hip-hugging belt fins ensure a close fit, and their generous pockets are ideal for snacks, phone and GPS. All the features come with a slight weight penalty, but it’s a small price to pay.

Read our full Deuter Trail Pro 36 backpack review

Vaude Asymmetric 42+8 hiking backpack

A perfect pack for hut-to-hut hiking in the Alps or Andes (Image credit: Vaude)

3. Vaude Asymmetric 42+8

Best pack for hut-to-hut trekking

Specifications

Volume: 50 litres
Weight : 1.475kg/3lb 7oz
Sizes: One size
Colors: Baltic sea/Cedar wood/Black

Reasons to buy

+
Adjustable back
+
Easy access main compartment
+
Good selection of pockets

Reasons to avoid

-
No rain cover

Multi-day backpacking trips frequently don’t involve tents, sleep mats and all the paraphernalia of self-sufficient overnighting. Networks of huts and hostels, especially in the Alps, allow for long, high-altitude walks with the comfort of a mattress under a solid roof for sleep. 

We reckon that the Asymmetric 42+8 is ideal for these types of adventures, with enough carrying capacity for mountain kit, without the bulk of an expeditionary pack. We were able to use the adjustable back system, which saw the shoulder harness slide up and down to achieve a personalised fit, and the padded shoulder straps and hip belt kept the pack close and comfortable throughout our test. There’s a long, flat zipped pocket on the front for a map or jacket, zipped entry to the main compartment and separate pockets in the lid and on the hip belt. The bottom internal compartment can stow dirty kit, or even take a tightly compressed sleeping bag.

Backpacks for day hikes

best hiking backpack: Black Diamond Speed 30

A rugged, adaptable lightweight climbing rucksack perfectly suited for alpine ascents and all-year-round use (Image credit: Jessie Leong)
The best day pack for climbers and scramblers

Specifications

Volume: 30L
Weight: S-M 990g / 2lb 3oz; M-L 1,140g / 2lb 6oz
Sizes: S-M / M-L
Fabric: BD X-rip 210d nylon body fabric with UTS coating

Reasons to buy

+
Lightweight – perfect for scrambling
+
Tough and durable, with a welded front abrasion patch
+
Lots of removable elements for customization
+
Suitable for all-year use in mountain high alpine terrain

Reasons to avoid

-
Rain cover needs to be purchased separately
-
Lack of pockets
-
Hip fins don’t feel particularly padded or comfortable

We found the Black Diamond Speed 30 to be a reliable alpine backpack that combines clever features with easy functionality and sold durability, all of which means it should feature high on any aspiring alpinist’s kit list. It’s low profile and easy to carry without being ultralight or minimalist, and it can be customized according to your mountain exploring and climbing requirements.

It’s one of the best daypacks around for mountain folk who like to head into the high hills all year round. The Speed 30 cleverly combines the light feel and ultra-tough durability of a high-performance alpine-orientated backpack, with a fully strip-downable design – including removable waist belt, lid and frame sheet. 

On test, our favorite features included the top-loading hood buckle that’s easily closable, even with hiking gloves on; a draw cord skirt at the top, which is useful for stopping spindrift and snow getting into the pack; and a welded front abrasion patch that protects the pack from jagged rocks and crampons.

Read our full Black Diamond Speed 30 backpack review

best hiking backpacks: Hellyn Hansen Transistor Backpack

This nifty Helly Hansen Transistor Backpack is ideal for swift little adventures on the wild side (Image credit: Pat Kinsella)
Best daypack for versatility

Specifications

Volume: 30L
Weight: 775g / 1lb 11oz
Sizes: Standard
Fabric: Nylon, EVA foam, mesh and cord

Reasons to buy

+
Nice wide U-shaped top opening
+
Excellent hip belts
+
Versatile, with plenty of tool attachment hoops
+
Good zips with glove-friendly loops
+
Hydration bladder compatible
+
Sternum strap has an emergency whistle
+
Some versions have a Recco Reflector

Reasons to avoid

-
No external pockets on main bag
-
Sternum strap fiddly to adjust
-
No rain cover
-
No women’s version
-
No recycled content
-
Pricier than much of the competition

The Transistor is a mid-sized, highly featured daypack that offers a huge amount of versatility, and can be used for just about any short-length mountain or trail-based activity, from day hiking and mountain biking in the hills and peaks, to scrambling along ridgelines.

The Transistor’s back panel, shoulder straps and hip belts are all made with perforated EVA foam, covered with 3D air mesh, to facilitate ventilation. There is no specific women’s version of the pack, but the harness is adjustable. Having said that, moving the sternum straps tends to be a fiendishly fiddly business, and you can lose the component parts.

It’s the versatility of this pack that really endears it to us. The harness is comfortable, and the hip belts are very substantial and comfortable considering the relatively small size of the bag. We've been using the Helly Hansen Transistor Backpack during all kinds of outdoor adventures during test, with a whole range of hiking and biking trips, as well as an off-road marathon and it performed well throughout.

Read our full Helly Hansen Transistor Backpack review

Montane Trailblazer 44 hiking backpack

Drawing on Montane's mountain running heritage, this is a backpack for quick-paced adventures (Image credit: Montane)
Best daypack for fast paced adventures

Specifications

Volume: 44L / 2685 cu in
Weight: 980g / 2lb 2.6oz
Dimensions (HxWxD): 55 x 35 x 20cm / 21.6 x 13.8 x 7.9in
Sizes: One size (adjustable back length)
Fabric: RAPTOR Cross Lite 70 Denier fabric, RAPTOR Resistance 210 Denier base panels

Reasons to buy

+
Great value considering its features
+
Lightweight for a pack of this capacity
+
Practical harness and hipbelt pockets

Reasons to avoid

-
No lid
-
Relatively simple back system
-
Mesh front and side pockets liable to snag

The Trailblazer 44 is an impressively lightweight and functional pack, with a streamlined design that strips away unnecessary weight. However, it doesn’t skimp on features, with plenty of practical pockets that offered us ample on-the-go storage. The price point is also attractive, and we think this is a great value choice if you’re looking to go ‘fast and light’ on your next adventure.

On test, the simple but effective back system felt stable and comfortable enough with loads of up to about 10kg, and while we found that it perhaps isn’t the most supportive or best ventilated design, it finds a good balance between maintaining a low trail weight and delivering overall carrying comfort. The main compartment is roomy enough to carry a full set of lightweight camping gear, while also being easy to pack and hydration compatible.

Read our full Montane Trailblazer 44 review

Exped Lightning 45 hiking backpack

Lightweight and with a deceptively simple design, the Exped Lightning is a class act (Image credit: Exped)
Best minimalist daypack

Specifications

Volume: 45L / 2746 cu in
Weight: 1164g / 2lb 9oz
Dimensions (HxWxD): 72 x 32 x 25cm/ 28.3 × 12.6 × 9.8in
Sizes: One size (adjustable back length)
Fabric: 210D ripstop nylon, PU coated (1,500mm HH), Oeko-Tex 100 certified with DWR

Reasons to buy

+
Lightweight compared to most
+
Stable and comfortable
+
Well-padded harness and hip belt

Reasons to avoid

-
No lid
-
No front pocket
-
Fiddly compression straps

The latest version of this tried-and-tested pack retains the ethos of functional minimalism that made it so popular with lightweight backpackers in the first place, while beefing up the pack’s overall durability, load-hauling ability and carrying comfort. With an adjustable torso length and various customisable and removable options too, we found it to be a versatile beast for trips ranging from a few days to a few weeks. 

The top-loading, roll-top design saves weight, and while it made access to the roomy main compartment slightly fiddly, that is largely offset by the useful deep outside top pocket, twin stretch side pockets and zipped hip belt pockets. For a minimalist pack, it's very stable when fully loaded and we found it comfortable to carry too, with ample shoulder and hip padding as well as plush lumbar support.

Read our full Exped Lightning 45 review

Craghoppers Classic Rolltop Backpack 20L

A trendy, functional, go-anywhere kind of pack that can be used in the hills AND on the commute (Image credit: Craghoppers)
The best daypack for the trails and the commute

Specifications

Volume: 20L / 1220.5 cu in
Weight: 645g/ 1.42lb
Sizes: One size
Fabric: Main: 100% polyester with PU coating / Strap webbing: 100% polyamide
Colors: Blue Navy/ Woodland Green/ Dark Butterscotch

Reasons to buy

+
Eco conscious design
+
Roll top
+
Water resistant material
+
Good pockets
+
Sneaky zips

Reasons to avoid

-
Not suitable for more technical terrain
-
No equipment attachment
-
No technical back panel

The Craghoppers Classic Roll top 20L is a popular choice for those who want a daypack that works for everyday use, and can also be take for an occasional hike. We found the roll-top strap closure to be a handy and well-considered piece of design, with the accent buckle forming part of the pack’s main structure. As well as looking good it’s a functional feature, as it was workable even when we were wearing gloves, and doubles as an effective way of compressing items into the pack. 

An expandable side pouch allows for a number of items – such as walking poles or a small water bottle – to be securely stowed inside, whilst a zipped compartment located just below the front helps organize and separate items for separate access. 

The rucksack also has impressive recycling credentials, having been constructed from 11 recycled plastic bottles. Thanks to its relatively small capacity, it’s light and can be used as a cabin bag when travelling.  The addition of Smart dry eco treatment means the bag will keep items dry during a shower.

Read our full Craghoppers Classic Rolltop backpack 20L review

Best backpack for winter adventures

best hiking backpack: Berghaus MTN Guide 45+

A quality pack with customizable features suited to mountaineering, ski touring and climbing use (Image credit: Alex Foxfield)
Best backpack for winter mountaineers and alpinists

Specifications

Volume: 45+ L
Weight: 1.67 kg / 3lb 6.8oz
Sizes: One size (adjustable back length)
Fabric: 100% recycled 400D nylon, with a 600D dope-dyed polyester ripstop

Reasons to buy

+
Top quality, durable components
+
Thoughtful attachments for rope, ice axe, poles and helmets
+
Recycled materials
+
Highly durable
+
Customizable for different scenarios

Reasons to avoid

-
Feature set aimed at mountaineers, not hikers
-
Pricier than most

A quality pack with customizable features suited to mountaineering, ski touring (though it's not a dedicated ski backpack) and climbing use. On test, we found that, whether heading to a crag for a spot of single pitch trad climbing, scrambling in the fells or heading somewhere snowy, the ability to adapt and remove the pack's various fixtures depending on what we were doing was a real boon. 

Meanwhile, the build quality and materials mean it should last for countless adventures. The main fabric, made from 100% recycled 400 denier nylon with a dope-dyed polyester ripstop, feels tough as old boots and is crinkly to touch.

Being part of the ‘Guide’ pillar of Berghaus’ Extrem range, it’s aimed squarely at serious mountaineers, so it lacks some of the features more casual hikers might value, like easily accessible mesh pockets, a vented back system and hipbelt pockets.

Read our full Berghaus MTN Guide 45+ review

best hiking backpacks: Osprey Mutant 52

Ain’t no mountain high enough for this classy alpine pack that’s full of useful features  (Image credit: Alex Foxfield)
Best for winter walkers

Specifications

Volume: S/M 50L / M/L: 52L
Weight: 1.5kg / 13 oz
Dimensions (HxWxD): 76 x 35 x 30cm / 30 x 14 x 12in
Sizes: : S/M and M/L
Fabric: Bluesign approved 210D recycled high tenacity nylon, PFC/PFAS-free DWR

Reasons to buy

+
Clever storage solutions
+
Ideal capacity for winter adventures
+
Tailored to use with gloved hands
+
Narrow profile aids stability
+
Customizable gear attachments

Reasons to avoid

-
No pockets on hip belt
-
Gear only accessible through the top

Developed in collaboration some of the world’s greatest climbers and mountaineers, Osprey’s Mutant 52 is pack designed to meet the demanding needs of alpinists. Blending the long-distance carry capabilities of a mountaineering pack with the fast and light ethos of the Mutant series, it’s a versatile pack that can be used for a range of adventure styles through the year.

Safety, stability and comfort were three of the main design goals. On test, we found the Mutant has a noticeably slim profile to aid stability and a close-to-body fit. It very much felt like a part of us once we were out in the wild, while still having all the attachments we needed for items like ice-axes, skis, ropes and helmets.

Where winter mountaineering and alpine exploits are concerned, the Mutant hits the sweet spot. It’s got enough capacity for all you’ll need – as well as clever storage solutions for the pre-requisite kit – while retaining the lightweight, streamlined and durable qualities of the smaller Mutant packs.

Read our full Osprey Mutant 52 review

Backpacks for expeditions

Berghaus Trailhead 65 hiking backpack

This great value, entry-level rucksack is one of the best hiking backpacks for expeditions (Image credit: Berghaus)

11. Berghaus Trailhead 65

Best entry-level expedition pack

Specifications

Volume: 65 litres
Weight: 1.7kg/3lb 12oz
Sizes: One size
Colors : Deep water/Black

Reasons to buy

+
Great value for its size
+
Customisable back length
+
Excellent access
+
Rain cover

Reasons to avoid

-
Not as lavishly padded as some rivals

The Trailhead  provides everything you need from a hiking backpack at an extremely competitive price. It fits a wide range of sizes and we were able to tinker with the adjustable BIOFIT back system, which slides from S to XL to position the harness according to height. There’s also a good amount of space between the shoulder and upper back pads to create a through-flow of air. 

A ‘diaphragm’ gave us the option of creating one open main compartment or to split it into two – one for clean kit, perhaps, and one for wet or dirty gear. We liked the way that this compartment s accessible from both the top and from a zip that runs down the front of the pack. Side pockets swallow a map and bottles, while the lid has a pocket large enough to fit a waterproof jacket. There are also external loops to attach walking poles, a channel for a hydration bladder hose, and a rain cover, so pretty much all bases are covered.

Best hiking backpacks comparison table

Swipe to scroll horizontally
Hiking backpackPriceWeightStyleBest use
Gregory Katmai 55$260 (US) / £210 (UK)2.12kg / 4lb 10.9ozStandard hiking backpackHiking, light backpacking, mountaineering, hut-to-hut trekking
Deuter Trail Pro 36$165 (US) / £130 (UK) / €170 (EU)1.49kg / 3lb 7ozDay packHiking, hut-to-hut trekking, mountaineering
Vaude Asymmetric 42+8$180 (US) / £150 (UK) / €160 (EU)1.475kg / 3lb 7ozStandard hiking backpackHiking, light backpacking, mountaineering, hut-to-hut trekking
Black Diamond Speed 30$185 (US) / £140 (UK)S-M 990g / 2lb 3oz; M-L 1,140g / 2lb 6ozMountaineering daypackClimbing, scrambling, mountaineering and high-altitude hiking
Helly Hansen Transistor Backpack 30L$170 (US) / £150 (UK)775g / 1lb 11ozDaypackDay hiking, biking, running, scrambling, peak bagging, climbing and all sorts of one-day trail-based pursuits
Montane Trailblazer 44£110 (UK)980g / 2lb 2.6ozDay packSpeed hiking, fastpacking, hut-to-hut trekking
Exped Lightning 45$100 (US) / £170 (UK)1164g / 2lb 9ozDay packSpeed hiking, fastpacking, hut-to-hut trekking
Craghoppers Classic Rolltop Backpack 20L$73 (US) / £55 (UK)645g/ 1.42lbSmall day packSpeed hiking, urban uses
Berghaus MTN Guide 45+£220 (UK) / no US price currently1.67 kg / 3lb 6.8ozMountaineering packAlpine and winter mountaineering, winter walking, ski touring
Osprey Mutant 52$225.00 (US) / £180.00 (UK) / €200.00 (EU)1.5kg / 13 ozMountaineering packAlpine and winter mountaineering, winter walking, ski touring, wild camping
Berghaus Trailhead 65£110 (UK) / €180 (EU)1.7kg / 3lb 12ozExpedition backpackHiking, backpacking, mountaineering, hut-to-hut trekking

How we test the best hiking backpacks

Our reviewers test hiking backpacks on trails in a range of environments and conditions, carrying various weights, ranging from multiday loads to day provisions. Features (including design, carry capacity, harness comfort, product weight, materials, pockets and ease of access) are tested against claims made by the brand, and we assess factors such as value for money, durability and functionality.

For more details. see how Advnture tests products.

Meet the testers

You can trust Advnture Our expert reviewers spend days testing and comparing gear so you know how it will perform out in the real world. Find out more about how we test and compare products.

how to puff your down jacket: Matt Jones
Matthew Jones

An outdoors writer and editor, Matt Jones has been testing kit in the field for nearly a decade. Having worked for both the Ramblers and the Scouts, he knows one or two things about walking and camping, and loves all things adventure, particularly long-distance backpacking, wild camping and climbing mountains – especially in Wales.

Pat Kinsella
Pat Kinsella

Writer, editor and enthusiast of anything involving boots, bikes, boats, beers and bruises, Pat has spent 20 years pursuing adventure stories. En route he’s canoed Canada’s Yukon River, climbed Mont Blanc and Kilimanjaro, skied and mountain biked through the Norwegian Alps, run an ultra across the roof of Mauritius, and set short-lived records for trail-running Australia’s highest peaks and New Zealand’s Great Walks.

Alex Foxfield
Alex Foxfield

Alex is a freelance adventure writer and a qualified mountain leader with an insatiable passion for the high places. The fells of his native English Lake District has a special place in his heart, though he is at least equally happy in North Wales, the Scottish Highlands or the European Alps. He's currently President of the London Mountaineering Club and working towards his winter mountain leader qualification.

best hiking backpacks: Jessie Leong
Jessie Leong

A former brand ambassador for Merrell and current Ordnance Survey #GetOutside Champion, Jessie Leong’s lifelong outdoor odyssey began with Duke of Edinburgh’s Award walks in the Peak District. This segued into long hill hikes in the Yorkshire Dales, multi-day treks in the Lake District, scrambles in North Wales and adventures scaling alpine pinnacles. When not walking, she can be found rock climbing, wild swimming, cycling, photographing, filmmaking, writing and modelling.

best hiking backpack: Jonathan Manning
Jonathan Manning

After spending a decade as editor of Country Walking, the UK’s biggest-selling walking magazine, Jonathan moved to edit Outdoor Fitness magazine, adding adrenaline to his adventures and expeditions. He has hiked stages or completed all of the UK's national trails, but was once overtaken by three Smurfs, a cross-dressing Little Bo Peep, and a pair of Teletubbies on an ascent of Snowdon. (Turns out they were soldiers on a fundraising mission.)

How to choose the best hiking backpack

There's an almost overwhelming choice out there when it comes to choosing the best hiking backpack. With such a range of sizes, features and applications, it can be difficult to know where to begin. Below, we've included some frequently asked questions and guide you through the main feature considerations when choosing a hiking rucksack.

Before investing in the best backpack for you, consider the following...

What's the difference between a hiking backpack and a standard backpack?

A standard backpack is designed for everyday, urban life, often with compartments for items like laptops and other electronics. Generally, this kind of backpack will have a capacity akin to a small daypack and won't be designed to haul heavy loads. As the wearer may be wearing it to places like the office or the shops, style and sophistication are serious considerations. Comfort is important too, though these kinds of packs aren't intended for continued wear for hours and hours and its probable that the wearer won't be exerting themselves too much while wearing it. While they have to be resistant to the weather to some degree, this isn't as crucial as on a hiking backpack.

A hiking backpack has much more to deal with than a standard backpack. For a start, it's likely the wearer will be shouldering it for several hours while on the trail, so it has to be super comfortable. It's also likely that the wearer will be working up a sweat, which makes air flow a crucial component too. This is why hiking backpacks often have ventilated back systems and the additional support of chest straps and hip belts, which transfer much of the weight of the pack off the shoulders, making for a more comfortable carry experience.

Speaking of weight, hiking backpacks are designed with durable fabrics that allow them to carry plenty of stuff. Super strong nylon is usually used for the main body, as it is also resistant to rock abrasion and the weather. Other features you'll often see on hiking backpacks that you typically wouldn't on a standard backpack include attachments for trekking poles and ice axes, integrated emergency whistles, a compartment for a hydration bladder, reflective detailing and a waterproof cover, among others.

best hiking backpacks: Alex and Osprey Mutant

A hiking backpack is likely to feature attachment points for trekking poles and ice axes (Image credit: Alex Foxfield)

Capacity

The approach you take to your hiking adventures will determine the size of backpack you'll need. Bigger packs are designed with camping expeditions in mind and come with all kinds of innovative storage solutions for items like your tent. Medium-sized packs are built with day-long adventures in mind and may have features like trekking pole or ice axe attachments. Smaller daypacks start to cross into hydration pack territory and feature handy pockets for things like water packs.

If you're looking to take to easy trails in just your best hiking shoes rather than full on boots, you won't want a heavy expedition pack. Likewise, if you're off an an epic thru-hiking adventure, where you'll be carrying all your camping gear from place to place, the best hiking backpack for you will have plenty of capacity.

As a rough guide, smaller packs for lightweight day walks range between around 15 and 35 litres. Medium packs, ideal for hut-to-hut treks or longer days scrambling and hiking in the mountains range from 35 to 55 litres. Above 55 litres and you're into serious expedition territory, with the capacity you need for your tent and camping gear.

best hiking backpack: Berghaus MTN Guide 45+ heading up

Bigger adventures call for bigger packs (Image credit: Alex Foxfield)

What size backpack is suitable for a 5-day hike?

For a 5-day hike, you'll be carrying your camping tent, sleeping bag, other camping equipment, spare clothes and plenty of food too. It depends slightly on the packability of your gear but for a 5-day expedition, we'd recommend a backpack with a capacity upwards of 60 liters.

What size backpack is suitable for an all-day hike

This really depends on the season. In summer, when there's a good weather forecast, some people hike with nothing more than a hydration pack. However, if you're out on the trails all day, you'll probably need a decent sized daypack, upwards of 20 liters.

When it comes to the colder months, your carrying needs increase, as you'll need space for warm layers, a blizzard bag and perhaps additional food and a hot drink. If you're winter walking, you'll also need an ice axe attachment and space for your crampons and possibly a helmet depending on where you're heading. Backpacks designed for winter tend to have a capacity of 40 liters and up.

Best hiking backpack: A runner with a hydration pack

Smaller hydration style packs are ideal for trail running and fast and light hiking (Image credit: Getty)

Back system

How the best hiking backpacks sit against your spine can make all the difference to your comfort and confidence on tracks and trails. Most back systems have some sort of padding to protect your spine from the pack, while deep grooves create air channels that allow sweat to evaporate. 

Other designs deploy a mesh trampoline that holds the entire back away from your spine for even greater breathability and support. This can, however, compromise your balance by holding the weight of your pack further away from your back. If you're weighed down by your camping gear, a traverse of technical ground becomes more difficult with such a backpack.

Harness

Shoulder straps need to hug your body closely, sharing the weight of a backpack with the hip belt. This is one of the areas where female hikers will find women-specific backpacks with shaped straps more comfortable. Shoulder straps themselves come in different widths and with more or less generous padding – it’s a personal choice between comfort and weight. 

Some straps also feature a small pocket or hooks on which to hang kit, ideal for items like your compass or multitool. This particularly true on hydration packs designed for adventure runners, who want to be able to grab energy gels and hydration pouches on the go.

Best hiking backpack: A hiker in the mountains

How the best hiking backpacks sit against your spine can make all the difference to your comfort and confidence on tracks and trails (Image credit: Getty)

Hip belt

Much of the weight of a backpack is supported by the hip belt, which hugs the core of your body. After a long day in the mountains, a standard hip belt often leaves your sides feeling a bit raw. The best hiking backpacks are designed to alleviate this issue. A bit of cushioning here can make a big difference to comfort, and a hip belt pocket for phone, GPS device or other items of hiking technology can prove to be very handy, especially with quick navigation in mind. Some hip belts on larger backpacking rucksacks are designed to swivel with your body movement as you walk, boosting your balance.

Organisation of gear

The fundamental purpose of the best hiking backpacks is to carry kit, so how it distributes this gear is vitally important. How to pack a backpack depends on personal preference. Some walkers (and especially climbers) prefer a tall slender pack, with few external pockets and kit carefully stowed in different coloured stuffsacks inside. Other walkers appreciate a host of lid and side pockets for frequently accessed items, such as drinks, snacks, camera and credit card, while keeping extra layers of clothing and a stove in the main compartment. 

It’s entirely a question of personal choice, but make sure you choose a backpack with a volume large enough to accommodate all your hiking paraphernalia, from your best hiking gloves and hats to your binoculars and insect repellent. Be aware, however, that just because you have space for extra kit doesn’t mean you should take it – lugging unnecessary gear up and down mountains is a thankless task.

Access

This is particularly important in winter. Fumbling with frozen fingers to open a backpack is a huge frustration, so check you’re happy with the access points. Do they open widely enough? Are the drawcord or zips easy to use, even with gloved hands? Does a top opening work for you or would you prefer a full-length zip along the pack to give instant access into the depths of your bag?

When backpacking in winter conditions, a good tip is to pack away things like your best down jacket and waterproofs unzipped, so that when you grab them from your pack, you've got one less thing to fumble with. Little efficiencies like this mean that you spend less time standing still and more time moving — crucial in the harsh winter environment.

Dealing with the weather

Your backpack is going to get wet. This is a fact. Very few backpacks are built to be fully waterproof and those that are can be eye-wateringly expensive. If you know you are going to be out a lot in the wetter seasons, it may be worth splashing out.

Even many of the best hiking backpacks are merely water resistant, which means they will cope with the occasional shower but succumb to longer spells of persistent rain. Most come with an elasticated waterproof cover that can be slung over them when the weather takes a turn for the worse. However, these rarely keep things totally dry.

With this in mind, many experienced hikers use dry bags to not only keep their kit dry, but also compartmentalize. This is particularly useful if you are on an expedition, where you can use one dry bag for wet kit, one for dry clothes, one for sleeping essentials and another for valuables.

Best hiking backpack: A pair of hikers in the desert

The best hiking backpacks have loops and attachments for items like ice axes and trekking poles (Image credit: Getty)