cowhide has high gloss, softness and comfort, and pigskin has good air and water vapor permeability, high strength and wear resistance. And cowhide is durable and often used in handicrafts, while pigskin has coarse pores, rough dermatoglyphics and poor aesthetics. Moreover, the fiber bundles of cowhide are thick and densely interwoven, and the subcutaneous fat of pigskin is developed. After the shoes are made, the grain surface is rough and the smoothness is not as good as that of cowhide. That is, leather shoes are good.