Choose from available women's sizes. Cotton, neoprene, nylon, polyester, and polyurethane. Choice of solid color option. Wide straps for a comfortable fit. Improves posture with proper alignment. This Evertone Supportive Back Wrap helps you correct your upper lumbar posture. This support brace for women is adjustable and may train your spine into a more proper alignment. The back wrap is comfortably lightweight, is virtually undetectable under clothing, and comes in select size options.Dimensions:Small/Medium: 11.5L x 11.5W x 1H in.Large: 11.5L x 13.5W x 1H in.Large/X-Large: 11.5L x 16.5W x 1H in. Size: S/M (Black).