TYR Women's Thresher Open Back Swimsuit. U12 Compliant. Baja. In excellent condition as shown. From the brand: “Designed to help you achieve your best swim, the TPJFON6A showcases a combination of innovative features. With embedded hydrophobic fiber this technical suit maximizes performance by reducing drag in the water. Size 26. Increasing the speed and efficiency of every swimmer, the Thresher's advanced level of compression helps to maximize core stabilization and support. In addition, flatlock seams conform to the athlete's body, providing a durable, 360 degree stretch, and uninhibited mobility.”