The Nano-Air Hoody sets a new standard for technical insulation, merging the breathability of open fleece with the protection and warmth of a puffy to manage your temperature and keep you comfortable in a range of conditions. Its supremely stretchy and breathable fabric package combines a plain-weave liner, warm-when-wet FullRange insulation and a lightweight, weather-shedding 100% nylon ripstop shell. The hoody has an incredibly soft, supple feel and full mechanical stretch that allow for a close, athletic fit over baselayers and an uninhibited range of motion. At chilly belays or in frigid conditions, pull on a lightweight shell and the Nano-Air's thermal properties skyrocket. The trim, stretchy hood is designed for next-to-noggin use, though it'll still fit snugly over low-profile helmets. Two above-harness handwarmer pockets and a pair of smaller chest pockets all close with trim, low-bulk zippers. The center-front zipper has a zipper garage for next-to-skin comfort. A dual-adjustable drawcord hem seals in warmth, and the cuffs feature a sleek, low-bulk stretch-knit inset. The hoody has a DWR (durable water repellent) finish.