The North Face Women's Found/Flex 1/4 Zip Long Sleeve (Black JK3) The Flex  is designed to move with you. Made from warm yet breathable polyester with sweat-wicking properties, you'll stay cool and dry as you train. Pull down the zip for a welcome breath of fresh air when things get a little sweaty. Lightweight fabric to help regulate body temperature and keep you comfortable.FEATURESKnit constructionInterlock poly jersey solid fabricationWicking performance characteristics1/4 zip closureSelf-turned sleeve and body hemHeat transfer white TNF logo on front and back Style: 7R2QFabric : 100% Polyester