TYR Men's Crypsis Jammer Swimsuit Stay a step ahead of the competition in the TYR Men' Crypsis Jammer Swimsuit. Constructed with TYR's most durable textile, Durafast Elite the SCR7Y 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. TYR jammer swimsuits stop above the knee and feature both a compressive fit and adjustable drawcord waist.