The shoe's lining is made of 100% breathable, highly absorbent, eco-friendly microfiber, which regulates body temperature and promotes sweat evaporation. A removable natural leather insole provides authentic comfort. These shoes offer excellent breathability, durability, and a perfect fit every time you wear them. A seamless fusion of technology and design, the non-slip rubber sole utilizes the latest technology to provide a natural and comfortable flexion of the foot.