Our go-anywhere Nano Puff® Jacket turns up the heat on a chilly White Rim morning, blocks wind going across Hailey Pass, and bunches up to make the best pillow ever at the end of the day. Weather-resistant and warm, the Nano features tear-resistant, 20-denier polyester mini-ripstop fabric with a Deluge® DWR (durable water repellent) finish to shed moisture and shut down wind. Insulated with lightweight and compressible 60-g PrimaLoft® One polyester (70% recycled), it serves as outerwear in cool conditions or as a midlayer when temperatures drop. The full-zip front has an internal wind flap and a zipper garage for chin comfort. Spandex at the sleeves and an adjustable drawcord hem seal out cold air and wind. The zippered handwarmers have reflective zipper pulls, and a hand-me-down ID label keeps track of ownership.