NIKE Speedvent NFL Buffalo Bills Men's Traning Shorts Dri-FIT fabric to wick away sweat and help keep you dry and comfortable Stretch waist with interior drawcord for a snug, adjustable fit, Laser-cut perforations at back legs and mesh panel at back waist for ventilation Team logo and print for pride,Stripes at sides Fabric: Body: 86% polyester/14% spandex. Mesh: Dri-FIT 100% recycled polyester. Buffalo Bills