Windproof and warm, the Patagonia Nano Puff Bivy pullover serves up high-performance features, light weight and a fit that makes it the ideal layer for belay perches and high altitude bivys. Features 60g PrimaLoft® Gold Insulation Eco, made with 55% post-consumer recycled content, is the most thermally efficient synthetic insulation available PrimaLoft Gold Insulation Eco is water-repellent and retains 98% of its insulating ability even when wet 2,156,127 plastic bottles won't be hitching a ride to the landfill this year thanks to new PrimaLoft Gold insulation Windproof, 100% recycled polyester ripstop shell has a (durable water repellent) DWR finish and glides effortlessly under outer layers Under-the-helmet hood with elastic binding is warm and easy to wear Kangaroo-style handwarmer pocket and zippered drop-in torso pocket doubles as a stuff sack with a reinforced carabiner clip-in loop Venting center-front zipper has wicking interior storm flap and zipper garage at chin for next-to-skin comfort Elastic bound cuffs and drawcord-adjustable hem seal in warmth Brick quilting pattern with horizontal quilt lines on side panels stabilizes insulation and uses durable thread for abrasion resistance Color: Lupin Material Shell and lining: 1.4-oz 22-denier 100% recycled polyester with a DWR (durable water repellent) finish. Insulation: 60-g PrimaLoft® Gold Insulation Eco 100% polyester (55% postconsumer recycled content). https://youtu.be/MF4HpaVhRg0?si=MeiS6_AmfiWL8eYz