NIKE Swim TESS0036 Mens Poly Core Solid Jammer Nike Performance Poly - Designed to perform in and out of the pool, Nike Performance Poly offers superior comfort and a lightweight fit. Created from durable performance polyester, Nike Performance Poly is designed for long sessions in chlorinated water and its stay-fast color and stretch-resistance means you look good day in and day out. Stretch waist with interior draw cord for a snug, adjustable fit Front lining for enhanced comfort Superior comfort & lightweight fit