The Tactical Research TR350 KHYBER II Hot Weather Lightweight Mountain Hybrid Boot was specifically designed for all-terrain use. This boot is AR-670 compliant for Army Combat Uniform (ACU) Wear. From rocky mountainous terrain to hard pounding concrete roads, the Khyber II will outperform when tested in any environment. It features an upper constructed of 100% suede cowhide leather and breathable nylon Cordura. It features a long wearing VIBRAM “IBEX” outsole for excellent traction on rugged terrain. A low profile sole reduces weight and A highly cushioned, shock absorbent midsole attenuates shock during intense physical activity. A patented TR-1 insole provides firm footbed support to reduce fatigue during long sessions of wear. With great design features to add to comfort and durability, such as its lace-to-toe lacing system for a customized fit, the TR350 is a top choice for everyday use. This boot has replaced the original TR360 Khyber Hybrid Boot and removes the heel slider and toe suede inlay from the original design.