Approved for flight line use, the Altama Hot Weather goes well with the ABU. Made of suede and Cordura, the upper is tough enough to take on the rigors of those daily duties. At 10 inches tall, the boot boasts key comfort features, such as a padded collar and removable insole. Made of dual density polyurethane, this insert is outfitted with a TPU support cradle for superior fit. Its Vibram rubber outsole boasts a 360 lug pattern for traction and grip. For extra protection, the boot incorporates a safety toe that is ASTM F2413-05 certified. Gear up with this American-made boot for those long, hot weather missions.