Fit & Design: The ideal choice for big climbing days or whenever you need that extra edge Next-Level Cooling: features include 22 strategically placed vents and internal air channels that help keep you cool no matter how hot the pace gets Comfortable and Secure Fit: lightweight ARS Fit System with adjustable head basket ensures a dialed fit with no pressure points Technology: Set-Up Options: can be fitted with aero-enhancing Aeroshell, and comes with two pad sets so you can choose between super light or comfort-enhancing Additional Details: 5-Star Protection: awarded "Best Available" protection rating by Virginia Tech's independent helmet testing organization CPSC 1203 COMPLIES WITH U.S. CPSC SAFETY STANDARD FOR BICYCLE HELMETS FOR PERSONS AGE 5 AND OLDER