TCX SP-Master Air Boots - BlackTCX SP Master Air Black SPORT TOURING RIDING, ALL WEATHER UPPER soft touch microfibre with front and rear increased padded area for a better comfort and flexibility. Upper gaitor for a better wrapping around the calf LINING AIR TECH Breathable REINFORCEMENTS Polyurethane Ankle Retention System, polyurethane heel guard, ergonomic shin plate with iron mesh air intakes. PU shift pad integrated in the upper SLIDERS interchangeable polyurethane toe slider