DetailsTYR Women's Size Chart Stay a step ahead of the competition in the TYR Women's Pytha Maxfit Swimsuit. Constructed with TYR's most durable textile, Durafast Lite® - the MPYT7A 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 medium neckline, thick/supportive straps, keyhole back, moderate cut leg and a bold print, the Maxfit is ideal for athletes who want fuller coverage during every swim. TYR performance swimsuits are fully lined, provide UPF 50+ sun protection, 360 degree range of motion and an antimicrobial lining for freshness. All Durafast Lite® suits are chlorine proof and sustain an impressive 300+ hours of performance.