Tough, breathable and lightweight. This high performance boot is used by the British M.O.D. under the harshest conditions. Upper Material Split Grain Leather & Fabric Construction Board Lasted - Cemented Sole Lining Wicking Polyester Upper Protection Rubber Toe Bumper Lacing Hardware Closed Metal Loops and Hooks Insole Climate Control Footbed Midsole Polyurethane with SPS System Stabilizer Medium Sole VIBRAMA(R) MVS Climate control footbed. Country of Origin Germany Weight Per Pair (lb) 3.63 Resolable Yes Safety Certifications O2 FO SRC