1High quality all-cotton elastic cloth, 96% cotton + 4% spandex yarn, high elasticity: stretch can extend to 180% of original length, paste area is bigger. 2Prevent muscle strain, and stop your muscles from aching. It has high viscosity, good waterproof, low sensitivity, soft permeability and high ductility. 3Water corrugated glue: imported acrylic glue, lining paper easy to peel, easy to cut. 4Good waterproof effect, for general exercise of the protective patch, does not fall off when it comes to sweat and water. 5It can be cut into various shapes according to different joints.