Heel Height: Approx. 8'' Tall. 100% waterproof and breathable GORE-TEX liner is engineered to keep your feet dry and comfortable - even in extreme conditions. Durable full-grain leather upper for excellent durability and abrasion resistance. Terra Force platform provides lightweight, durable traction, heel-to-toe energy transfer, side support to enhance maneuverability, and protection from arch overwork and fatigue.