(F) TYR Women’s Durafast Elite Lyn Racerback Swim Top, Black Carbon Hex The TYR Women’s Lyn Racerback – Carbon Hex is designed to keep up. The perfect combination of durability and support, the BLFCHX7A is equipped with removable contour cups, full body power mesh control, and advanced Durafast Elite fabric. 100% chlorine proof and 100% colorfast, this suit provides 300+ hours of performance.