NIKE SWIM Victory Color Block Jammer Imported Boys' jammer with stretch waist and interior draw cord for a snug, adjustable fit. Front lining for enhanced comfort. Engineered with Nike NX, a highly durable nylon and chlorine resistant spandex blend. Designed to handle the rigors of training and competition. Hand wash cold / lay flat to dry. Fabric: 81% Nylon / 19% Spandex. Color: Court Green 313. Style: NESS4039.