Lake MX331 Carbon Mountain Shoes. Weekend cyclocross ride on tap Going to hit some trails this weekend and put in a longer than average ride Maybe you're commuting to work and it's rainy The Lake MX331 Carbon Mountain Shoes are one of the most versatile high performance shoes around and can handle nearly any task you throw at them. Believe it. So, what's the secret The Lake MX331 is constructed out of K Lite kangaroo leather. This material provides the ideal balance between flexibility and power delivery to the pedals. Plus, it's breathable thanks to the shoe's mesh uppers. Your feet will feel consistently comfortable and locked in tight. The result is better, longer power transfer to your bike. Lake uses its CFC Race Last design to further enhance power transfer to the pedals. Finally, many high performance shows are only as good as their sole. Lake used its Lake Race carbon fiber sole. Why Carbon fiber provides the optimal amount of rigidity for power transfer.