Light and airy, like a good powder day. Think uphill breathability and downhill warmth with just the right amount of stretch. FeaturesSlim fit sits close to the body, with room for the garment to move with you Stretchy, breathable, and lightweight nylon plain weave fabric Thermacore stretch insulation [40g] for focused warmth and enhanced breathability, [ak] DWR coating, Lightweight low-profile back of hem cinch Packable into a pocket Pocket utility loop and media port, Reflective details Zippered chest pocket and hand-warmer pockets bluesign® approved materials use only safe chemicals and reduce impact on both humans and the planet during manufacturing