Approved for flight by the U.S. Air Force and U.S. Army, the Belleville C790 Waterproof Flight & Combat Boot is multi-functional and perfectly suited for both air and ground combat use. With its waterproof GORE-TEX fabric, lace-to toe design and 100% rubber exclusive VIBRAM® Sierra outsole, you won’t sacrifice any traction, stability, or comfort you need to feel confident in any terrain or situation.