TYR Men's Size Chart Stay a step ahead of the competition in the Men's Oil Slick Racer Swimsuit. Constructed with TYR's most durable textile, Durafast Elite - the ROS7A 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. Featuring a fitted brief style, adjustable drawcord waist and vibrant print, the TYR racer is ideal for athletes who want a combination of minimal coverage and comfortable support during every swim. Features: - Durafast Elite(TM): 300+ Hours of performance - Fully lined - UPF 50+ sun protection - 360 degree range of motion - Antimicrobial lining for freshness - Chlorine proof - 94% Polyester / 6% Spandex