The Belleville 790 ST is a mil spec desert flight boot approved by the U.S. Army and U.S. Air Force. This boot is a top performer while in the air or on the ground. A Gore-Tex bootie is sewn into the boot lining and provides a waterproof barrier as well as wicks any moisture inside the boot to the outer layer. A steel toe protects your feet from falling hazards. Belleville has cut no corners with this boot. The boot upper consists of 100% pure cowhide suede and ballistic nylon for abrasion resistance. Belleville's VANGUARD running shoe sole absorbs any shock and makes it easier on your feet, ankles, and knees. A VIBRAM Sierra outsole features large lugs with provide great traction on both loose and smooth surfaces. The 790 ST is approved for U.S. Army Flight use and U.S. Air Force Flight use. This boot is Berry compliant and made in the USA with pride.