Harbinger 4-Inch Nylon weightlifting belt features an extra wide 3-inch support strap provides maximum lower back and abdominal support for heavier lifts. Parallel lines of 346 count nylon stitching run the entire belt length to support and stabilize the belt body for uniform support. Heavy gauge steel roller buckle makes tensioning simple and easy. The Harbinger 4-Inch Nylon weightlifting belt is constructed from thick, flexible heavy-duty nylon web which provides maximum comfort and durability while maintaining muscle warmth. 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.