All weather Two types of rubber and a patterned heel area grab the ground, giving you more control in muddy conditions. While the waterproof membrane keeps the wet out. Secure foothold A reinforced SensiFit construction holds your foot comfortably in place, especially on those tough downhills. Stable & cushioned Surrounded by foam cushioning for comfort, the Advanced Chassis connects directly to the sole to stabilize your heel. The higher cut wraps the ankle for extra protection.