SideBike Pro Mountain Bike Cycling Shoes with Carbon SoleLight weight microfiber material reduces the wind resistance. The breathing holes by the toes allow the feet to stay dry and comfortable. The anti collision design of the toe cap make for a safer shoe. The Atop Knob is a dual adjustment, wear and take off more convenient. Also reduces the stress of overcrowding on the feet. The sole is constructed of ultra light carbon fiber material with SUPERIOR stiffness.