Designed with a fully black lined front and back to eliminate transparency, and stretchy bound seams for superior comfort, this women's one-piece swimsuit boasts a UPF rating of 50+. The Outer shell is constructed of 6 oz. Colorfast and chlorine-resistant nylon/Spandex; the back and side seams are flat-lock-stitched for comfort and stretch. The combination of nylon and Spandex make the Racer Tank highly chlorine and fade resistant with color hold. The Racer Tank includes 1” bound straps, full coverage, modest cut legs, a built-in shelf bra, and supportive binding.