Constructed from ultra-lightweight, moisture wicking poly-fabric for the ultimate in comfort and performance. Sleek, close-fitting performance racing cut incorporates open mesh inserts to promote cooling. Low neck design features mid-length zipper with zip garage for ease of entry and comfort. Pull chord zippers are semi-auto locking to offer secure closure. Elongated lower back hem helps keep maintain fit. Flat rear pocket features a multimedia compartment with internal headphone conduit to store MP3 player or phone.