The tpr sole is made of thermoplastic rubber. Thermoplastic rubber material is a kind of polymer material that shows rubber elasticity at room temperature and plasticity when heated, and has both thermoplastic processing and forming characteristics and rubber elastic properties of vulcanized rubber. TPR sole has the advantages of easy shaping, cheap price, lightweight and comfortable sole, high elasticity, easy to stain, good air permeability, high strength, and very low temperature resistance, high friction coefficient, strong grip and so on.