Lightweight, proven in the field and loaded with value, the Speed 4.0 8' AR 670-1 is crafted with suede leather and 1200D nylon for durability. Force Foam heel cushioning, an Ortholite footbed, and a high-abrasion mesh tongue make sure your feet are feeling good no matter the job. The ASTM slip- and oil-resistant outsole is stitched for hard use and 5.11's Heat Deflect material helps shield your feet from the heat of the pavement. This boot is AR 670-1 Compliant.