Anatomical shaped belt in neoprene for good back support! Widen at front for extra abdominal support as well as contour shaped at rib and hip for extra fit and comfort. 5,5" (14cm) width back support, close belt with the strong Velcro. Really cool Embroidered logo at back! Washable, ventilation holes at back and more..! Quality: 60% neoprene, 40% nylon, lining 100% polyester. Waist size: XS: 22-27inch (55-70cm) S: 26-31 inch (65-80 cm) M: 30-35 inch (75-90 cm) L: 34-39 inch (85-100 cm) XL: 38-43 inch (94-110 cm)