Light, agile, precise, and extremely comfortable. The Men's Croda DFS - GTX is a mountaineering boot ideal for challenging climbing and expeditions in mixed environments with rock and glacial snow. The Kevlar upper with over-injected Spider Frame provides the needed resistance to impact and abrasion while retaining comfort and mobility. The Vibram Croda Litebase sole offers stability, grip, and precision even in the most technical situations. The Croda is compatible with traditional or semi-automatic crampons making this the perfect boot for light and fast climbs on mountains like Rainer or the Grand Tetons. Don't miss a step with the exclusive AKU Dual Fit System (DFS) technology. Simply tighten the second set of speed laces to go from hiking to climbing.