Nike Swim Men's Nylon Core Solid Jammer Tough Is Better! Enhance your swim in our Nike Nylon Core Solid Jammer. Featuring our premium Nike NX fabric, this suit offers durability and a streamlined fit in the water. Technology Nike NX More Benefits Stretch waist with 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 Built for superior shape retention and support