OSI COOLWICK fabric - lightweight 100% performance ply. (Same fabric used in the Pro shirts, this short looks great with all Pro shirts). Black brief liner - (if unwanted, liner can be cut out). Drawstring elasticized waist. Two back pocket flaps are clipped at sides to lay flat. Two generous side pockets. NEW USSF logo has been embroided on right leg. OSI logo has been embroidered on left leg. Inside coin pocket.