Kask Utopia Y Helmet New Era of Aerodynamics and Ventilation A helmet isn't always just to protect your head, it can also help make you more aerodynamic and keep you cool while riding. The Kask Utopia Y Helmet pushes the engineering and design boundaries even further. This updated, redesigned helmet is a new, fresher version. It features Hyvent with a structure that is designed to maximize airflow and thermal regulation of your head. It also has an Octofit+ adjustment system which guarantees improved fit and stability. Features Octofit+ adjustment system which guarantees improved fit and stability Resistex Carbon padding that is breathable and promotes moisture wicking Reflective graphics enhance visibility in low-light conditions Hyvent to maximize airflow and thermal regulation Aerodynamic design that reduces your drag so you can slice through the air SPECIFICATIONSCore Material EPS Foam Closure system Octofit+Safety Certifications CPSCIntended Use Road, Racing Weight-Sizing Size Small Medium Large Head Circumference50 - 56cm52 - 58cm59 - 62cm | Kask | Utopia Y Helmet Men's | Size Medium In Grey