TYR Women's Durafast Elite Diamondfit Swimsuit Size: 30 (S), Color: Blue Vitality Fabric type: 94% Polyester, 6% Spandex 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, sleek/flexible straps, keyhole back and moderate cut leg, our Diamondfit swimsuits are the perfect performance suits for athletes who want reliable coverage that won’t weigh them down. All TYR Durafast Elite products have a lining for odor protection and long lasting freshness. Due to their chlorine proof and colorfast nature, Durafast Elite swimsuits are able to sustain 300+ hours of use, while maintaining a comfortable hold on your body.