The men’s ALTERRA GTX hiking boot is designed to attack mixed terrain on longer medium-difficulty treks. A Vibram Octopus outsole features asymmetrical construction and AKU’s Elica tech, which even load distribution and improves the foot roll. A double-density PU midsole and GORE-TEX Performance Comfort lining mean your foot breathes and stays dry on ample cushioning. The upper is a suede and stretch fabric blend. With no gusset and elastic material in the tongue and collar, the fit is outstanding.