The Tifosi Crit sunglasses are racing glasses built for speed, so it&';s obvious why they&';re named after the uniquely American style of bike racing that&';s all about laying down big watts in the sprint. Aerodynamic lines and engineered ventilation specialize the Crit for endurance sports.Adjustable arm and nose pieces specialize the Crit for you. Crit is equipped with Enliven(TM) lenses that fine tune the wavelengths of light that matter most; making greens, blues, and reds pop with definition.