Under Armour Boots: We take one of our best, most durable, and incredibly comfortable tactical boots to a notch with Charged Cushioning that you'll appreciate the more the longer you're on your feet Under Armour Technologies: Full-length Charged Cushioning midsole for the ultimate in lightweight, impact-absorbing comfort Specifications: Contoura molded anti-fatigue support insoles with shock absorbing foam. Durable Vibram XS Trek outsole responds on unpredictable terrain with great flexibility and wet traction Premium materials: upper: 64% textile, 36% synthetic~sole: 100% rubber.