First, the handle: the touch the leather surface, if smooth, soft, plump, flexible feel leather; general artificial synthetic leather surface astringent, rigid, poor flexibility.
　　Second, seeing: observe real leather surface will have a clearer pores, pattern, yellow leather have a more symmetrical pores, yak skin has coarse pores and sparse, goatskin scaly pores, the pores pigskin rough triangle, and leather, although imitation of the pores, but is not clear. Here to tell you the characteristics and identification methods pig leather, horse leather, cow leather, sheep leather: cow leather surface thin, high strength, the most suitable for production of leather; sheep leather light, thin and soft, ideal for leather clothing fabrics; pig leather good water vapor permeability performance, more suitable for making underwear and children's products; horse leather fiber structure more closely, the intensity is relatively high, for the production of leather pants and boots better. In general, the thickness, density and distribution of the pores of the leather surface is to distinguish between the main basis for cow leather, pig leather, horse leather and sheep leather.
　　Pig leather: leather surface pores round and thick, relatively obliquely inserted into the leather interior. Arrangement of pores is a group of three, the leather surface showing many small triangular pattern.
　　Cow leather: cattle leather and buffalo leather are called cow leather, but they also have some differences. Cattle leather surface pores round, straighter to reach into the leather, the pores close and uniform, irregular, like the stars. 　　Buffalo leather surface pores than cattle leather thick, compared with the number of cattle leather pores scarce, leathery more relaxed, as detailed plump cattle leather. Horse leather: leather surface pores oval, slightly larger than the cattle leather pores arranged more laws.
　　Sheep leather: leather grain pores of oblate pores clear, a few form a group, arranged in scaly.
　　Third, the smell: all real leather has a leather smell; and leather are people with a strong irritant plastic odor.
　　Fourth, the light: Remove from real leather and artificial leather on the back a little fiber, lit, Where a pungent odor, formed lump is leather; who issued the hair smell, does not bear a hard nut to crack is the dermis.