Nike Swoosh Jammers Mens Conquer the pool with the Swoosh Jammers from Nike. Crafted with an elasticated waistband and internal drawstring tie, these jammers are designed to keep you comfortable and focused on the task at hand. Design is finished with flat-lock seams for reduced irritation and the Nike swoosh for a slick finish. > Jammers > Elasticated waistband > Internal drawstring > Flat-lock seams > Nike swoosh > 82% polyester, 18% elastane, lining: 100% polyester > Hand wash