The Shimano SH-XC90 Wide MTB Shoes meet the demands of elite-level XC racers with optimized sole stiffness and Custom-Fit technology for enhanced pedaling efficiency and comfort that goes the distance. Heat moldable upper and insole gives you a competitive advantage with glove-like ergonomics, support, comfort and stability. The front section of the carbon outsole is fitted with optimally shaped spikes and blocks, which are arranged in an ideal pattern to maximize traction. The open, mud-shedding tread pattern allows mud and debris to fall through, keeping the shoe light and power-efficient. Resin toe spikes work well in dry, rocky terrain and can be swapped out for metal spikes (not included) when you need more traction. Reduced sole thickness under the cleat area transfers more power directly to the pedals. Rovenica upper is extremely resilient, XC Heel Cup holds your foot in position and Cross X Strap alleviates pressure at the top of the foot. Unleash your power to the fullest.