1, single shoes are the soles of beef tendons. This kind of sole is elastic, comfortable to wear, a little heavy, wear-resistant and waterproof, and it is a good sole material for travel shoes and daily shoes.

2. Rubber sole materials can be roughly divided into natural rubber or synthetic rubber. The advantage of natural rubber is that it is very soft and elastic, and can be suitable for all kinds of sports, but the disadvantage is also obvious, that is, it is not wear-resistant. Indoor sports shoes mostly use natural rubber. Beef tendon sole, a kind of light yellow translucent sole, is named after its color and properties are similar to beef tendon. The rib bottom can be made of rubber or plastic, and thermoplastic rubber (TPE) is the most convenient one.