Take our instant-classic original Nano Pullover, add a full-length zipper for greater all-around ease and, presto, the versatile Nano Puff® Jacket. It is weather-resistant enough to wear as an insulated shell in a wet snowstorm, trim enough to pull on for chilly rock pitches (and still see your footholds), and warm enough for light belay parka duty on quick alpine dashes. The wind-blocking, moisture-shedding 100% recycled polyester shell also glides effortlessly, whether worn as a mid- or outer layer. Low-bulk, hydrophobic, highly compressible PrimaLoft® One (60 g) traps heat with remarkable efficiency, even when wet. The Nano Puff® Jacket packs down to practically nothing and stuffs into an internal zippered chest pocket that has 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. Recyclable through the Common Threads Recycling Program.