NOTE:please measure your waist before purchase,Women should choose the actual size according to the size guide chart, usually 1-2 sizes smaller than men's size. 75%Polyester,20%Viscose,5%Spandex,breathable and fresh, light fabric Hidden snaps upgrade for easier snapping. Discreet easy snaps to dress and undress with ease Durable, easy to wash, and care. Machine wash in cold water and dry at low temperature. The post shoulder surgery shirts are suitable for people after shoulder surgery, rotator cuff, heart bypass, breast surgery, sports injury, etc., Unisex Post Shoulder Surgery Tank Tops