Products Description Airy and light summer footwear for leisure time activities or office. Upper Full Grain Leather Full grain leather is made from the top split of the hide and ensures top quality. Only the hair has been removed, so the natural surface grain is unchanged. It preserves the hide’s original texture and markings. Full grain has a great durability with the best fiber strength of leather. Lining Microfibre Microfiber is a soft material and has good moisture conducting properties. Midsole Integrated Shank Thermoplastic polyurethane (TPU) is mixed with glass fibers to create an impact-resistant material with a high degree of stiffness. Outsole Leisure.