Coated leather and nylon ripstop upper. Bellows tongue keeps out debris. Protective and abrasion resistant rubber toe cap. Breathable mesh lining. Mesh footbed cover. Cleansport NXT? treated for natural odor control. COMFORTBASE? removable contoured footbed cradles your foot in all day comfort. Rock plate for protection. Molded nylon arch shank. Lightweight EVA foam midsole for stability and comfort. Slip and oil resistant durable rubber outsole; Mark II tested.