Despite its understated styling (and it's fun-to-say name), the Fi'z:k Uomo Boa shoe is all about the business of going fast. From the high-tech synthetic upper to its carbon fiber sole and everything in between, the Uomo Boa feels the need for speed. The Fi'z:k M3 Uomo wraps your foot in a confortable, breathable Microtex upper. Laser perforations promote cooling airflow and allow water vapor to escape to keep your foot cool and dry. The BOA closure system allows you to adjust your fit precisely, even on the bike, so you don't have to pull over if you feel your foot slipping in the shoe or if your feel a hot spot popping up. Hot spots are unlikely, however, with Fi'z:k's comfortable Uomo footbed providing support and ensuring sensitivity as you pedal. Speaking of pedaling, you won't lose a watt of energy through Fi'z:k's thin but super-stuff unidirectional carbon fiber sole.