The Tuffking Apex Safety Hiker Boot with side zip comprises of completely Metal-Free material. This boot offers a fibreglass toecap with Kevlar midsole for the lightest weight protection. The cushioned and energy absorbing dual density Polyurethane/Rubber sole creates an added layer of comfort for long wear. Using an Xtra-Lite footbed system and triple layered military grade memory foam that offers comfort for rigorous hours spent on foot. With the YKK Zip, this boot can be easily removed when on active duty, while offering secure ankle protection. This boot performs in all weather conditions as it has been rigorously tested for Heat Insulation in cold temperatures and Cold Insulation for warmer temperatures.