TYR Women's Durafast Elite Solids Diamondfit Workout Bikini 94% Polyester, 6% Spandex Imported TYR performance swimsuits are fully lined, provide UPF 50+ sun protection, 360 degree range of motion and an antimicrobial lining for freshness. All Durafast Elite suits are chlorine proof and sustain an impressive 300+ hours of performance. Stay a step ahead of the competition in the Women's Durafast Elite Solid Workout Bikini.