Troy lee designs ace sleeveless base layerthis sleeveless ace base layer is a body temperature regulating base layer that can be worn all year round the 4 way stretch polyester spandex fabric wicks moisture to keep you dry and features flatlock stitching inside and out features4 way stretch polyester spandexflatlock stitching inside and out for compression fitbody temperature regulatingmoisture wicking fabriccan be worn all year roundbuy troy lee designs clothing from chain reaction cycles th