Natural Rubber --- This sole is made of natural rubber, it has good elasticity, high wear resistance, and resistance to bending, stretching and compression. Features --- The rubber also has the properties of acid and alkali resistance, insulation, strong bonding strength and non-slip effect in rainy days. Relieve fatigue -- - The sole has good elasticity to ensure that your feet are comfortable while walking and effectively relieve walking fatigue. Wide Applications --- Protective leather sole, shoes of High quality boots are essential. Simple and easy to repair, improve the life of your shoes. Various Sizes---You can cut and shape it to any size you want.