Chaco Z/2 Unaweep Sandal - Backcountry.com Exclusive - Men's Backcountry Blue, 11.0 Midsole: polyurethane Recommended Use: casual, light hiking, camping, rafting, fly fishing Footbed: LuvSeat Sole: Vibram with TC-1 rubber compound, 4.5mm lug depth Manufacturer Warranty: lifetime