Lowa Men's Zephyr GTX LO Hiking Shoe 100% Split leather and cordura Supportive yet flexible uppers require no break in Split leather upper Gore-Tex waterproof liner with breathable XCR technology LOWA 'Cross' sole unit with full length shank provides great traction on wet and dry trails Monowrap construction takes the midsole polyurethane and injection molds it around the sides of the shoe to provide support with a lightweight external frame