80% Neoprene, 20% Nylon
Scientific design: Built-in 9 steel bones to keep the muscles warm and support, prevent fatigue and injury after exercise. The neoprene trim belt can make you sweat 3 times more than usual, help you eliminate toxins and accelerate the calorie burning process. While moving freely, the belt will not slide up and down. The front zipper closure and 3 adjustable waist belts are suitable for different degrees of compression. Front zipper design is easy to put on and take off