BRAND: Sport-Tek SHIRT TYPE: Sport-Tek Colorblock Windbreaker (JST61) SIZING TIPS: Runs a little small / short in the torso. So order up if you're on a bubble size or want looser fit. SHIRT INFO: 100% polyester. Two slash pockets. Cadet Collar. Half elastic, half self-fabric cuffs. Open hem with drawcord and toggle for adjustability. A light weight jacket.