The Nano-Air® Light Vest is perfect for all your mountain activities, allowing you to stay in motion without pausing to change layers. With flexible and breathable FullRange™ insulation, it releases excess heat while keeping you warm. Manufactured in a Fair Trade Certified™ facility. Stretchy, Breathable Fabric-The 100% recycled polyester ripstop shell and lining fabric offer mechanical stretch, exceptional breathability and improved abrasion resistance, with a durable water repellent (DWR) finish made without perfluorinated chemicals (PFCs/PFAS) to resist light moisture; the microtexture keeps fabric from sticking to the skin for versatile comfort FullRange™ Insulation-40-gram FullRange™ 100% polyester (93% recycled) insulation delivers outstanding mechanical stretch and air permeability (35 CFM), allowing excess heat to move away from the body Built for Mobility-Articulated patterning and strategically placed, low-profile quilting combined with stretchy fabric and insulation provide an exceptional range of motion for unhindered movement Zipper with Garage-Center-front zipper has a zipper garage at the chin for next-to-skin comfort Pocket Details-Two handwarmer pockets and a left-chest pocket are zippered, low profile and low bulk to wear comfortably with a harness or a pack; vest self-stuffs into the left-chest pocket Low-Bulk Design-Cleanly finished armholes and hem are low bulk and keep things simple Supporting The People Who Made This Product-Made in a Fair Trade Certified™ factory, which means the people who made this product earned a premium for their labor Country of Origin-Made in Vietnam. Weight-170 g (6 oz) Patagonia Womens Nano Air Light Vest Black