KTM PowerWear Crossfire 3 SRS Boots. High-end off-road boots. Full-grain leather and Lorica upper. Exclusive and patented flex system with hyper extension block. Lined with Cambrelle and Air Teflon Mesh to optimally absorb sweat and water. SRS (Sole Replacement System) "Dovetail" sole with replaceable middle piece. Interchangeable shin plate. Adjustable / interchangeable buckles. Anatomically shaped heel. Joint to prevent overstretching of the ankle joint, the back of the foot and the back tendon. Additional joint in the boot shaft to improve the flexibility of the shoe and the adjustment to the calf. Reinforcements at the toe, mid-foot. Anatomically shaped, removable insole. 78% polyurethane / 5% rubber / 4% nylon / 4% polyester.