The Tactical Research TR636Z CT Men’s Maintainer USAF Hot Weather Lightweight Side-Zip Composite Toe Boot was designed for U.S. Air Force maintainers working on the flight line. The Maintainer is an aggressive-looking industrial boot option designed to withstand the rigors of maintenance environments. This boot features a non-porous leather so grease, oil, fuel, and spills simply wipe away. This version features a side ankle zipper for convenient wear and removal for those on the go. A lightweight composite toe provides protection from falling or rolling objects encountered in a maintenance environment. It features an over-lasted midsole for maximum cushioning and comfort wven during long duty hours. A breathable moisture wicking lining keeps your feet dry and comfortable for hours on end. The Tactical Research TR636Z CT is regulation approved for uniform wear for U.S. Air Force personnel.