82% Polyester, 18% Spandex Pull On closure Boasts a slim cutting for a flattering silhouette, detail with figure contouring lines Soft fabric lends all-day comfort Contrast ventilating properties on back wicks moisture and dries fast for comfort during tough workouts Thumbholes prevent sleeves from riding up and keep warm during cold weather activities Teamed with leggings, they are the perfect addition for workout, gym, running or everyday activities BALEAF Women's Long Sleeve Crop Top Slim Fit Workout Shirts for Running Gym Yoga - B1ZRXLYUD