Charge hard in the Chaco Men's Z1 Unaweep Sandal. An aggressive Vibram TC 1 rubber Unaweep outsole features 4. 5mm lugs for maximum traction on land and in water. Chaco had your wide feet in mind when they made this high performance sandal a wide footbed gives you plenty of breathing room, and there isn't the prohibitive toe loop that's on many performance sandals. The footbed itself features Chaco's Luvseat technology for long lasting comfort and is approved by the American Podiatric Medical Association. A slip resistant diamond pattern keeps your foot in place, even in wet conditions, as does custom injection molded ladder lock. Polyester jacquard webbing wraps around the foot and through the midsole for customized fit, and an adjustable, high tensile webbing heel riser has just enough stretch to keep you comfortable.