21) camel skin camel skin is a unique leather model with granular texture. The image itself looks hard, but the leather is very soft and comfortable, and has been popular for many years.
22) pigskin pigskin (pigskin), which is said to be the closest composition to human skin, is considered to be the most mild natural leather and feels comfortable with human skin.
23) polycarbonate is toughened and used as racing glass (polycarbonate) and polycarbonate (carbon dioxide plastic), which is a more durable material than normal plastics.
24) Alcantara Alcantara is a kind of artificial leather with the feeling of endothelium. Compared with natural leather, it has better air permeability. It is mostly used in the seats and interiors of high-end cars.
25) rubber rubber is a soft and smooth material, very close to the hand. Because the rubber is completely waterproof, it is often used in diving and sports watches.
