Strong yet comfortable breathable microfiber upper and stiff reinforced nylon sole, Theta are an excellent introduction to the world of road cycling shoes. Vented uppers and soles, secure Velcro strap closure and compatible with all major pedal systems. These cycling shoes use a super-stiff nylon sole which has been specially profiled to ensure efficient power transfer, so your pedalling efforts are transferred directly into forward motion. Microfibre uppers are very durable, and large mesh panels have been incorporated for cooling and breathability.