Contoured weightlifting belt is ergonomically designed to fit the natural shape of the body while stabilizing the core muscles Extra wide 7.5 inch lifting belt with 3 inch support strap promotes proper posture during lifting and strength training 5 contoured EVA channels stiffen the extended 7.5 inch width for maximum support Heavy gauge steel roller buckle for easy tensioning and custom fit. Plush tricot lining is comfortable against the skin Available in four waist sizes: S (24-29 inches), M (29-33 inches), L (33-37 inches), XL (37-42 inches); measure around waist to determine size