When your operation takes you into the most rugged terrain, the Quest 4D GTX Forces 2 gives you the support and grip of a mountain boot, while retaining the flexibility to take a knee or sprint in tough conditions. Waterproof, breathable Gore-Tex® lining keeps your feet dry and comfortable. 4D Chassis™ delivers unprecedented landing, propulsion and protection. Contagrip® outsole provides grip on any terrain and surface.