The TerraX3 is a heavy duty Berry Compliant boot. This durable hot weather boot features abrasion resistant flesh-out cattle hide leather and a breathable moisture wicking lining along with a Vibram outsole. This style is also AR670-1 Compliant, built specifically to meet military specifications. Abrasion Resistant Flesh-Out Cattle Hide Leather with CORDURA Moisture Wicking Dri-Lex Lining Cushioned Removable Insert Polyurethane Cushioned Midsole Proprietary Vibram Trident Rubber Outsole (FOD Approved) Direct Attach Construction Make in the USA AR670-1 Compliant