4-3/4 in. width in back . Our "Power Belt" - Extra firm with reinforced neoprene (available in black only) . Patented hip and rib contour for extra comfort . Belts widen in front for extra abdominal support . Patented one-way Velcro for an exact fit . Belts widen in front for extra abdominal support . Dual closure system with heavy duty stainless steel slide bar buckle . Washable - hand wash only with mild detergent and air dry . Made in the USA . Available in various sizes . Two year warranty . Waist Dimensions . Extra Small: 24 in. - 28 in. . Small: 27 in. - 32 in. . Medium: 31 in. - 36 in. . Large: 35 in. - 41 in. . Extra Large: 40 in. - 45 in. . XXL: 44 in. - 50 in.