This sport support goods are made of NEOPRENE material. It has a good flexibility,heat preservation function, and wears comfortably, and can be provided many colors and various styles.Easy and convenient,the construction is simple, and match the human body engineering to learn the principle, streamlined design, and can alleviate the part of arthrosis,because of the sport to produce aching.This product applies the any crowd and every kinds of ball games, fit to exercise with the leisure.