Characteristics of natural leather is superior to other materials in that it flexible, breathable, abrasion, folding, beautiful and so is the high-grade leather material necessary help. Its characteristics are: 1. Natural leather parts of the merits of the very different. Since the skin in animals of different parts of the function, generation, development is also different, their different ministries after finished leather fiber structure, density, tear out sheet strength are different. In particular perception, feel extends flex resistance and processing properties are different. 2. The site of the fibers (silk pattern) structure has directionality. Different parts of each leather, fiber to be different. When the leather is stretched effect, different in different parts of elongation. Some of the force ratio is different, its elongation is different, and differ greatly. 3. breathability. This feature enables the wearer's sweat, shoe discharged outside the chamber, so that the wearer feel comfortable. 4. Good heat and cold resistance. 5. abrasion resistance, good stamping performance, and there is easy processing performance. 6. soft leather, tough, and elastic and flex resistance. Adapted to the physiological needs. 7. beautiful and has easy modification, modeling performance.