Providing a 'teknical' advantage, these performance vests are constructed from two different fabrics that keep you warm while allowing a full range of motion. 100% polyester baffles, 90/10 polyester/spandex double weave Durable water repellent (DWR) finish Woven locker loop label Dyed-to-match stretch binding at armholes Zippered side pockets Adjustable drawcord hem Texturized zipper pull