MATERIAL: Upper: suede leather/nubuck leather/mesh knit, tongue with a pocket to hide the laces. Lining: elastic mesh knit. Lining: removable, 0.9 cm thick in the heel area, soft and flexible. Sole: the highest quality Vibram® brand, rubber with anti-slip properties (ceramic tiles base covered with glycerine), resistant to diesel oil and high temperature in short-term contact (up to 300 ° C / 1 min.), deep tread and modern sole sculpture remove liquid impurities, increase anti-slip properties and adhesion to the ground. A layer of EVA foam in the sole increases the cushioning properties