Therapeutic posture corrector has adjustable shoulder straps and a revolutionary back brace with nodules that press into your lower back, reminding you to stand up straight and improve posture. This back support belt triggers muscle activation, helping to support and correct the spinal column to a neutral pain relieving position. Adjustable, one touch back belt closures fits waists up to 57”, providing a perfectly comfortable fit, every time. Lightweight import made of neoprene, polyester & EVA. Shown inside out for demonstration purposes.