The Nano-Air® Light Jacket was made to be worn for the entirety of your aerobic, start-stop mountain activities, so you’re never slowed down by having to change layers. Stretchy and breathable FullRange® insulation dumps excess heat when you’re working hard and keeps you warm when you’re not. Regular fit Breathable Fabric with Stretch Shell and lining fabric built from 100% recycled polyester ripstop is stretchy, breathable, abrasion resistant and comfortable next to skin, with a durable water repellent (DWR) finish made without intentionally added PFAS to resist light moisture Revolutionary Insulation 40-g FullRange® insulation is warm, stretchy and exceptionally air permeable; combined with the shell and lining, this provides excellent mobility and breathability Designed for Freedom of Movement Articulated patterning and strategically placed, low-profile quilting combined with stretchy fabric and insulation provide an exceptional range of motion for unhindered movement Center-Front Zipper Center-front zipper has a zipper garage at the chin for next-to-skin comfort Pocket Features Two handwarmer pockets and one chest pocket are zippered, low profile and low bulk to wear comfortably with a harness or a pack; jacket self-stuffs into the left-chest pocket Variable Conditions Cuffs Sleek, low-bulk, snag-resistant cuffs allow stretch to keep warmth in and pull up over the forearms for visibility and temperature control; a cleanly finished hem seals in warmth Country of Origin Made in Jordan and Vietnam. Weight 332 g (11.7 oz) Shell 2-oz 30-denier 100% recycled polyester air-permeable stretch ripstop with a durable water repellent (DWR) finish made without intentionally added PFAS Lining 1.6-oz 30-denier 100% recycled polyester air-permeable stretch shadow ripstop with a DWR finish made without intentionally added PFAS Migration-resistant insulation 40-g FullRange® 100% recycled polyester Fabrics are certified as bluesign® approved Care Instructions Machine wash cold, do not bleach, tumble dry low, do not iron