If it's durability and performance that you're looking for, this is the boot for you. The all leather waterproof upper provides the ultimate protection from the elements, and the lightweight custom-molded phylon EVA midsole delivers the comfort and performance you'll need to take on any shift. This boot uses "air" technology to increase the level of comfort and cushioning for long shifts on the hard surfaces of the urban battlefield. Equipped with only non-metallic components, the Metro Air 9" Side-Zip is the ultimate airport-friendly law enforcement uniform boot.