Tactical Research Belleville Men's Khyber Hot Weather Lightweight Mountain Hybrid Boot leather-and-fabric Vibram sole Aggressive Lace-to-Toe style allowing a customized fit. Reliability, stability, and traction  in a lightweight, comfortable boot Rough-side out cowhide leather and nylon fabric VIBRAM "IBEX" Outsole for rugged terrain and Breathable Combat Lunar lining with TR-1 Load Bearing Orthotic Insole. Deeply serrated Hell Kicker and Heel & Toe Overlays Designed to aid in braking & arresting slides while extending the wear & life of the boot.