Amazon.com | KEEN Men。* CONSCIOUSLY CREATED: Environmentally preferred leather supplied from certified tanneries; Durable water repellent helps prevent leather from drying out * MATERIAL: Premium leather houses a mesh lining for breathable durability * COMFORT: Elastic panels and pull tab for easy on and off; Light flexible underfoot cushioning springs back after each step * TRACTION: KEEN ALL-TERRAIN rubber sole provides high traction grip in muddy environments and on rocky surfaces with 4mm multi directional lugs; Non marking rubber outsoles leaves no trace when walking indoors * CARE TIPS: Gently brush leather with a soft bristle brush or hand towel to remove loose dirt and debris; Tough stains may require a leather cleaner