HIGH QUALITY NEOPRENE BACKING - This helps keep the belt in place during high intensity Exercises. The Rubberized Material also helps Repeal Sweat, Moisture, and Odor! UNIVERSAL FIT - Our Velcro Strap Attaches to the Outer Fabric of the Ab Belt, allowing you to tighten or loosen to fit any waist size! TRIMMER FLATTER ABS - Help Trim and Sculpt Your Belly & Abs by Increasing Your Core Temperature. Assists in Burning Off Excess Water Weight. Perfect Weight Loss Belt Combined with Diet & Exercise