Generally speaking, the sole material should be wear-resistant, waterproof, oil-resistant, heat-resistant, pressure-resistant, impact-resistant, elastic, easy to fit the foot, difficult to deform after setting, heat-insulating and easy to absorb moisture.
Sole materials are divided into rubber soles, tendon soles, Melaleuca soles, foam soles, composite soles and leather soles according to different shoes.
Tendon base is divided into soft tendon base and hard tendon base.
There are two kinds of tendon soles: rubber and plastic, and thermoplastic rubber (TPR) is the most convenient one. It started with rubber beef tendon. At that time, this color was mainly made into sandals and connected with other materials, which was called beef tendon color.
This kind of sole is most suitable for leisure sports shoes, which is very soft and elastic, very comfortable to wear, strong in fastness and silent in walking.