Cow leather with cow raw hide by dehairing and tanning and other processes made of leather that has been denatured non-perishable. Made of leather is composed of natural protein fibers in three-dimensional space tightly woven, its surface has a special grain layer, with natural grain pattern and luster, comfortable feel. Cow leather can be divided into head leather and two layer leather according to the level.

According to the current standard QB/T2262-96 "leather industry terminology" in the definition of skin, leather, "skin" refers to the animal from the body, not tanned skin, also known as rawhide; "leather" refers to the use of rawhide after tanning, antiseptic and other processing to become a leather product can be made of materials.

At the request of the State Light Industry Bureau, April 1, 2011 the implementation of the new industry logo, logo file number: QB/T1333-2010 (backpacks), QB/T2155-2010 (luggage); logo changes are as follows:

1, the first layer of cowhide, the first layer of patent leather to cowhide.

2, two-layer leather changed to cow leather.

3, PVC to artificial leather.

4. Lining (including nylon and cotton) is changed to fabric.

5. Fabric (including fabric and nylon) is changed to fabric.