Sun-warmed rock down low, icy runnels up high: sendin’ temps. Whatever your preferred medium, core warmth matters and our Nano-Air Vest® keeps pace throughout high-output, stop-and-go missions in variable conditions. Its stretchy and highly breathable fabric package integrates the qualities of fleece, soft shell and puffy. Our warm-when-wet FullRange® insulation is sandwiched between a plain-weave liner and a lightweight yet durable, weather-shedding 100% nylon ripstop shell with DWR (durable water repellent) finish—all of which means you can put it on and leave it on. The vest’s incredibly soft, supple feel and full mechanical stretch allow for a close, femininely sculpted fit over baselayers and an uninhibited range of motion. The left-chest pocket and two handwarmer pockets all close with trim, low-bulk zippers. The center-front zipper has a storm flap and zipper garage, while stretch binding at the armholes and a dual-adjustable drawcord hem seal in warmth.