Built for active lifestyles, the all-new Crest blends proven fit and performance with a modern new design. A softer, more rounded tail gives it an attractive shape that’s versatile enough for fitness rides, commuting or just cruising the neighborhood. Large, air-scooping vents keep you cool, and an ErgoDial Fit System offers easy one-handed adjustment. A visor helps shield sun glare or rain, and the shell is made with an extended polycarbonate material for added durability.Key Features:Weight: 288 grams,Vents: 17,Construction: Extended In-Mold Polycarbonate Shell,Certifications: CE EN1078,Fit System: ErgoDial Fit System,Visor: Removable Visor.