Sleek and robust design, Breathable nylon mesh lining. Full Grain Leather, Soft, breathable nylon mesh lining, Cushioned foam footbed. Soft, breathable nylon mesh sock lining with CLEANSPORT NXT pro-biotic odor control. Durable and lightweight EVA midsole heel. T1528 Durable rubber outsole for traction. Strobel construction. Technologies: CLEANSPORT NXT