Unisex Lower Back Posture Corrector Adjustable Adult Corrective Belt Waist Trainer Shoulder Waist Support Spinal Support Belt Vest Package includes: 1 x Back Correcting Belt Size: S (Waist): 69-81cm/27''-32'' M (Waist): 82-91cm/32.1''-36'' L (Waist): 92-101cm/36.1''-40'' XL (Waist): 102-112cm/40.1''-44'' Features : (1) Made of comfortable and breathable cotton material, buckles and tape; (2) Special eight-open design is easy to adjust the tightness; (3) Easy to wear, comfortable and breathable; (4) For medial fractures efficient. How to use: Pull the strap over your shoulder ensuring the elastic is closest to your body. Stretch and tighten the belt around your torso. Adjust position and comfort as needed. The shoulder straps should be pulled slightly back in the shoulder area. If needed, pull the belt down slightly to increase shoulder pressure.