Vibram FiveFingers KSO Trek Men's Kangaroo Leather ShoesBrownMen's Size 42/US 9-9.5Excellent ConditionThe KSO Trek is a more rugged version of our popular KSO. The kangaroo leather upper and sock liner are soft against the foot, yet strong and tear resistant, with outstanding breathability. A 4mm EVA midsole offers plating protection from stone bruising, and a lightly cleated 4mm Vibram performance rubber outsole delivers improved traction on trails and over more rugged terrain. Machine Washable. Air Dry away from sun or heat source.