Maximum support with anatomical shaped belt in neoprene! Widen at front for extra abdominal support as well as contour shaped at rib and hip for extra fit and comfort. 6,5" (16cm) width at back support with EXTRA added stability, close belt wi th the strong Velcro. Washable, ventilation holes at back and much 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)