1. Deer skin suede is added into artificial wool. This material is composed of flannelette and a layer of chemical cilia. The material is poor and the air permeability is poor.
2. There are many materials in the market, such as cow leather and blended wool. The blended wool is mixed with more than 70% of chemical fiber, which reduces the warmth retention and permeability.
3. Domestic grade 2-3 wool is integrated. Although this quality is made of leather and wool, which is close to the genuine material, it adopts grade 2-3 sheep's fur that cannot meet the export standard. The leather is relatively soft and thin without wearing, and the wool is sparse phrase 1.8mm standard.
4. Domestic first-class fur is integrated. This kind of fur quality is the material of snow boots sold at the counter. The leather is uniform and thick, thick and soft, with a length of about 1.8mm and a deviation of less than 2mm. It smells vaguely with the unique fragrance of wool. The foot feels warm and breathable without sultry. It has the four advantages of high-quality pure wool: permeability, warmth retention, moisture resistance and health care.
