Sportswear by Nike. Swimsuit for men. Jammer (NESSA006-440) PERFORMANCE AND COMFORT.Comfortable, adjustable and durable, Nike Swim Jammer is as comfortable to wear as it is to perform. Its interior drawcord lets you adjust it perfectly. Flat seams reduce chafing, so you can get the most out of your day in the water. Benefits Nike HydraStrong fabric provides long-term durability, swim after swim.Inner front lining offers a comfortable fit and modesty. Product details Heat-transferred Swoosh pattern Body: 53% polyester/47% PBT. Lining: 100% polyester. Hand wash