synthetic insulation The best synthetic puffer jackets 2024: feather-free padding to keep out the winter chill We've tested the best synthetic puffer jackets, which offer excellent insulation at a friendly price point The North Face Thermoball 50/50 Jacket review: ultra-breathable, planet-friendly insulation for frigid ascents 50/50 baffle construction means you can attack the mountain with vigor on cold days without overheating What is PrimaLoft? What is PrimaLoft? Find out exactly what this waterproof, insulated material is doing for you when you’re out exploring in all weather Advnture NewsletterAll the latest inspiration, tips and guides to help you plan your next Advnture!Contact me with news and offers from other Future brandsReceive email from us on behalf of our trusted partners or sponsors MOST READ1Colorado's wolves make a break for Rocky Mountain National Park2Tourists mob elk for photos at Grand Canyon – it doesn't go well3Ortovox Mesola ski jacket review: what the shell? A superb hard/soft hybrid you’ll love4"Rather embarrassed" wild camper sparks two-hour rescue operation after forgetting where he pitched his tent5This Garmin watch can run indefinitely on a single charge, has its own flashlight, and is cheaper than ever at Amazon