This performance swimsuit utilizes high denier poly fiber and innovative circular knit construction, to combine the strength and colorfastness of polyester with the comfort of spandex. Adoretex Jammer swimsuits hit above the knee and feature a compressive fit, adjustable drawcord waist and free range of motion. They are the perfect performance suits for athletes who want reliable coverage that won't weigh them down. Designed for men's and boy's swim racing and training. The Adoretex Side Wings Swim Jammer features a non-slip, flat braided draw cord for a comfortable, secure fit.