DOLFIN Bellas Female X-Back Bikini Java Blue This highly popular 2-piece design is the latest trend in training suits, especially for those training outdoors who want minimal tan lines. Featuring a keyhole opening in the top for water to pass through, bottom drawcord and stylish X-Back straps, this fully lined training bikini will bring you hours of quality workouts while looking super hot! Features: 91% Polyester 9% Spandex Fully-lined Bottom drawcord Keyhold opening in top allows water to pass through