The sun/shade line on pitch 13 is reason enough to bring along the Nano Puff® Jacket. As a sleek micro-belay parka on chilly rock routes or as an insulated jacket during wintertime squalls, it traps your heat and blocks the wind. Its 100 % recycled polyester shell sheds moisture and glides effortlessly in your layering system, while the low-bulk, hydrophobic, highly compressible 60-g PrimaLoft® Gold Insulation Eco—now with 55 % post-consumer recycled content, and still the most thermally efficient synthetic insulation available—warms with remarkable efficiency, even when wet. The jacket has a sculpted fit, with narrow horizontal quilting on the shaped side panels, and the soft, wicking interior storm flap and zipper cover add chin comfort. Its internal zippered chest pocket doubles as a self-stuff sack with a carabiner clip-in loop. It also has two zippered handwarmer pockets, elasticized cuffs, and a dual-adjust drawcord hem to seal out wind and seal in warmth. FeaturesRegular FitDWR (durable water repellent) finishWater-repellent, highly compressible PrimaLoft® Gold Insulation EcoBrick quilting pattern with narrow horizontal quilt lines on side panels stabilizes insulationDurable threads for abrasion resistanceCenter-front zipper has wicking interior storm flap and zipper garage at chin for next-to-skin comfortTwo zippered handwarmer pockets have cleanly finished zipper garagesZippered internal chest pocket doubles as a stuff sack with a reinforced carabiner clip-in loopDrawcord-adjustable drop-tail hem seals in warmthWeight: 283 g (10 oz)