About this item Full-grain leather upper is naturally soft, lightweight and breathable. Breathable leather linings absorb moisture for a dry, healthy foot environment. Comfort Fibre System increases air circulation to help keep your foot cool and comfortable. Leather upper, upper lining and sockliner, Comfort Fibre insole, polyurethane midsole and outsole. Care: Buff with a leather cleaner or polish. Wipe off with a dry cloth.