Hot compression molding, natural rubber and reclaimed rubber. Heavy, oil resistant, molding bottom must be in the joint surface coarse grinding, easy to shorten the heating, color is not consistent. Advantages: good wear resistance, and antiskid, elastic, not easy fracture, flexibility is good, good expandability and shrinkage stability, hardness, bending and waterproof. Disadvantages: heavy, easy to spit the frost (quality problem), not easy corrosion (environmental protection); Not hard, easy to be pierced through; Bad air permeability, hygroscopicity, afraid of oil immersion, should not be in the filling station in contact, such as oil. Does the rubber foam weight lighter than rubber soles, rubber, on time, with his fingers on the surface of rebound than ordinary sole, wear-resisting performance is poor. Does high pressure polyethylene rubber soles Flavour ingredient of high pressure polyethylene and rubber sole, rubber and plastics. Does raw rubber, quality, and the heavier and more expensive, oil resistant, no heat. Easy to change color.