Description: Effective for back problems such as poor posture, backaches, neck and shoulder pain, curvature of the spine (scoliosis), osteoporosis, mild to moderate kyphosis, slumped shoulders etc. Adjustable straps, elastic fabric and strong support. Breathable, comfortable to wear for a long time. Provides shoulder/back support, reduce muscle fatique & back pain. Helps correct posture, especially for those who sit in the office all day long. Great for office workers, students, teachers etc. Specification: Material: Nylon Suggested waistline & height & Weight: S waistline 60 - 75cm / 24 - 30 inch height: 140 - 150cm / 55 - 59 inch Weight: 40 - 60kg M waistline 65 - 85cm / 25.6 - 33.5 inch height: 150 - 170cm / 59 - 67 inch Weight: 50 - 70kg L waistline 75 - 95cm / 30 - 37 inch height: 160 - 180cm / 63 - 71 inch Weight: 60 - 80kg XL waistline 85 - 105cm / 33.5 - 41 inch height: 170 - 190cm / 67 - 75 inch Weight: 70 - 90kg XXL waistline 90 - 115cm / 35.4 - 45.3 inch height: 180 - 200cm / 71 - 79 inch Weight: 80 - 100kg Package Includes: 1 Piece Back Posture Corrector Belt Note: Please double check the size chart when you purchase.