The Nike Men's Vibe Jammer offers a streamlined fit with excellent shape retention. Featuring our long-lasting Nike Performance Poly, this suit offers comfort and durability during practice and on race day. Stretch waist with interior draw cord for a snug, adjustable fit Front lining for enhanced comfort Designed to handle the rigors of training and competition Built for superior shape retention and support Engineered with Nike Performance Poly, a durable, long-lasting performance polyester Fabric: 100% polyester (53% polyester / 47% pbt)