Boot Height: Approx. 6'' Tall. Hit the trail in confidence with the Wolverine Sentinel Waterproof Hiker. From its waterproof leather upper to its rugged Vibram rubber outsole, this men's ankle boot performs in a range of conditions. The polyurethane footbed has a supportive arch and is backed up by a nylon insole board. An abrasion-resistant overlay wraps the boot to protect the leather. The Wolverine Sentinel WP Hiker features a breathable GORE-TEX membrane to ensure a dry interior from the start of your adventure to the end. Abrasion-resistant synthetic overlay. Cement Construction. Metal fasteners. Nylon insole board. Waterproof Horween BackBay leather upper. Waterproof membrane lining.