The Tannicus series are the most rugged boots Danner makes. The Danner 55317 Men's Tannicus 8 inch Waterproof Coyote Brown OCP ACU Uniform Bootwas made specifcally for the U.S. Army's new OCP ACU uniform. A rough-out leather and rugged nylon upper provides lightweight protection from the elements. This boot features Danner's Dry 100% Waterproof lining for moisture protection to keep your feet dry and cool in any weather condition. This boot adds a layer of cushioning in the midsole and a dampening heel cup for maximum shock absorption in the field. A removable polyurethane insole provides additional comfort. This boot is designed for hot weather and is breathable and will keep your feet dry with a moisture-wicking mesh liner. Danner's proprietary outsole features 5 sided lugs to give you unmatched traction in loose terrain and pavement.