For dependable longevity and amazing comfort, the Durand Mid Waterproof Hiking Boots are crafted with a PU midsole and a dual compound rubber outsole. Built in Keen's Portland, Oregon factory, these durable boots keep feet dry with a waterproof, breathable membrane. TPU shank for torsional stability on uneven terrain. Dual compound rubber outsole for durable traction and grip. Direct attach PU polyurethane midsole for long term, shock absorbing cushioning PU resists breakdown and compression for the long haul. Integrated PU heel cushion for shock absorbing cushion and stability. Keen.Dry waterproof, breathable membrane keeps water out and allows perspiration to escape. Waterproof nubuck leather and mesh upper for support, durability, and breathability. Removable metatomical dual density EVA footbed cradles the natural contours of the foot and provides excellent arch support. Built in Keen's Portland, Oregon factory. Fit tip: Keen finds this style runs about a 12 size small Keen suggests ordering a 12 size larger than your usual size.