The whole upper is made of waterproof nylon and cowhide leather.
The outsole is made of rubber which is of very high performance of anti-slip and anti-abrasion.
The upper part of boots is with a kind of lining, very soft, comfortable and elasticity, which protects the foot from sports or activities.
The outsole is anti-slip, anti-abrasion. The insole is  breathable which can be wear for long time without flashing up odor.

Different functions can be added: Such as waterproof, flame  retardant, anti-splash, insulation, etc.