The Danner Men's Mountain 600 Full Grain 4.5IN Boot is a hiking boot with a classic look blended with new Technology. The leather Upper provides the look Danner started with, plus durability and a softness over time. It's waterproof, designed to keep feet happy in rainy conditions. The new Vibram; SPE Midsole and Fuga Outsole provides the traction necessary in not just slippery terrain, but dry as well, plus cushion for comfort in every step. Features of the Danner Men's Mountain 600 Full Grain 4.5IN Boot Strongest and most durable form of leather 100% Waterproof Moisture wicking Removable Ortholite Footbed three layers of varying Density Are combined for maximum cushioning and support Entire Footbed is made of open-cell polyurethane for better heat dissipation and air circulation Vibram SPE is rubberized EVA Midsole maintains the same cushioning properties as traditional EVA, but is more durable and won't break down as easily, Technology enhances rebound, comfort and support Vibram Fuga Outsole with self-adapting lugs and specially formulated megagrip compound Outsole provides incredible grip on both wet and dry surfaces