Product Intel: M-CARBON 8 BUILT FOR SPEED: The force multiplier this boot provides is almost unfair. It's the only carbon-plated AR-670-1 / AFI 36-2903 boot on the market. And now it's yours for the taking. Best For: Optimal Athletic Performance & Running • Sub-40 pound rucks • Selections • School • Competitions • Obstacle Courses Features: >> Meets current regs for AR 670-1 and AFI 36-2903 >> Marathon-inspired carbon plate for spring, support, and enhanced forward propulsion. >> Lightweight Future Foam EVA midsole. Rides like a running shoe. >> The only carbon-plated AR-670-1 / AFI 36-2903 compliant boot >> Removable performance INSITE® Contoura® PU Footbed >> High abrasion GRIP-STIK-FIELD rubber outsole compound for unsurpassed traction on road rucks Performance Upper System: >> Weight per pair (based on a size 10): 1.4 pounds >> Heel to Toe Drop: 6mm >> Full air mesh lining for 360-degree air circulation, combined with laser-perforated tongue for unmatched breathability >> 1000D quarter panels combined with perforated ankle supports for breathability >> 8" split grain flesh out waterproof leather for faster drying time >> Strategically placed non-metallic drainage ports evacuate water in just a few steps >> NATO Rust-proof speed lace loops for quick lacing with field-proven durable round laces