Stay a step ahead of the competition in the TYR Women's Crosscut Tieback Swimsuit. Constructed with TYR's most durable textile, Durafast Elite - this onepiece 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 low neckline, X-Back and adjustable tieback. TYR performance swimsuits are fully lined, provide UPF 50+ sun protection, 360 degree range of motion and a lining for freshness. All Durafast Elite suits are chlorine proof and sustain an impressive 300+ hours of performance. TYR Durafast Elite: 94% Polyester / 6% Spandex.