Description of Patagonia Nano Puff Pullover Jacket The Men's Nano Puff Pullover is wind- and water-resistant, very warm for its weight, highly compressible and can be worn as insulation or outerwear in cold climates.Already a cult classic with our ambassadors and testers, the new Nano got top marks for versatility, surprising warmth and terrific all-around performance in a superlight no-frills package. It's 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 DWR (durable water repellent) finished 100% all-recycled polyester shell (1-oz 15-denier) 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 deep front zipper allows for easy ventilation. The Nano also packs down to practically nothing and stuffs into a single chest pocket that has a carabiner clip-in loop. Recyclable through the Common Threads Recycling Program. Features: Versatile 60-gram PrimaLoft® One polyester insulation provides excellent warmth and compressibility Ultralight face fabric sheds water and blocks wind Deep center-front zipper allows for easy ventilation Stuffs into a self-storage left chest pocket Elasticized cuff and hem seal out wind and trap warmth Shell and lining: 1-oz 15-denier 100% all-recycled polyester with a DWR (durable water repellent) finish. Insulation: 60-g PrimaLoft® One. Recyclable through the Common Threads Recycling Program 266 g (9.4 oz) Made in Thailand and Vietnam.