Lowa Men's Ranger GTX Trekking Boot 100% Leather and synthetic Vibram sole Built for hiking with a medium-weight pack Waterproof and breathable Gore-Tex lining Climate Control perforated lining manages heat and moisture C4 anatomically contoured tongue Balance footbed with perforated top layer and slow-reacting foam manages moisture and customizes fit PU midsole with SPS cushioning 5mm nylon heel stabilizer/3mm forefoot