Black compression shirt with cross braces to correct posture. crafted for ultimate performance. Featuring strategically placed rubber panels to pull shoulders back and prevent slouching. this top ensures excellent breathability and comfort. Its sleek, form-fitting design allows for unrestricted movement. Can be worn under other shirts throughout the day. Size is Medium/large does fit very snug. So if your a large or bigger may be difficult to wear. Gently used. Typically worn by tattoo artists to prevent back issues