Neoprene helps with weight loss and waist sculpturing and shaping •Attach a layer of two belts to firm waist control, flatten the stomach and slim your tummy •Zip keeps a tight fit around your waist to achieve the long-lasting waist-cinching effect as you lose weight •Adjustable sticker straps for easy adjustment and secure closure and make sure that the belt is fastened tightly around the abs •Outer fabric material: Polyester+Nylon; Inner material: Neoprene