Features： 1、Elastic material, breathable and comfortable, lightweight and beautiful posture correction. 2、With a unique cross?width strap design, this bra will straighten your breasts. 3、The transverse extension of the back can effectively straighten the breast, healthy and safe 4、Hook & loop adhesive, easy to control, soft material, wonderful, breathable. 5、Correct hunchback, collect auxiliary breast; Improve chest sagging, spinal curvature and other problems. Specification： Item Type: Posture Corrector Material: Polyamide Instructions for use: 1. Spread your arms, put on the corrective belt, and adjust the shoulder belt to an appropriate position. 2. Pull down and adjust the hook & loop tightness 3. Pull the end of the double Y cross lead band to the abdomen, and then bond it after proper adjustment of tension Product Features: 1. Reinforced cross support on the back, to correct the hunchback and chest of cats 2. Breastplate underwear design can be matched and liked by yourself 3. Hook & loop is stick and comfortable to handle by yourself 4. Silky material, wonderful, breathable and refreshing SizeLower BustBra SizeWeight S63-70cm / 24.8-27.6in-3247.5kg M70-76cm / 27.6-29.9in32-3652.5kg L76-83cm / 29.9-32.7in34-3860kg XL83-90cm / 32.7-35.4in38-4265kg Package List： 1 x Posture Corrector