Recommended For: Big game hunting with a heavy pack on a steep and rugged terrain in cold conditions. The Hunter GTX Evo Extreme is designed for hunters who are chasing big game in extremely rugged, above-tree-line terrain. With an extra-high shaft for superb ankle support, and a high wall rubber rand for protection against abrasion, the Hunter provides outstanding performance, warmth and comfort in tough fall & winter conditions. It is compatible with strap-on crampons and snow spikes. Featuring a durably waterproof/breathable GORE-TEX lining to protect feet from the elements. Upper Heinen terracareA(R) Nubuck Leather Lining GORE-TEX, PrimaLoftA(R) 200g Insole Climate Control Midsole DuraPUA(R) w/ SPS System Outsole VIBRAMA(R) MASAI Weight 1030g / Single Shoe Country of Origin Germany