Black tie back tanks yoga shirts cropped workout tanks crop workout tops open back gym tank tops for women 95% Rayon 5% Spandex. Material is very stretchy, lightweight and soft. Non see through fabric. DESIGN: Twist back, Tie knot back, Open back, High neck, Fashion and Casual, Slim fit Feature: Open back detail of the tank top can show you healthy muscles, and make you feel breathable when you exercise. Great tie knot band of the back make sure that the front will not go up during a workout, can adjust the tightness Occasions: workout, yoga, exercise, gym or daily life, perfect match for leggings, short, pants NOTICE: Please refer to the size measurement below before ordering.