Kask Protone Icon Helmet The New Synonym For Victory When it comes to road cycling and road racing, you'll want a helmet that is breathable, aerodynamic, and can provide all the protection you need to ride confidently. The Kask Protone Icon Helmet features the latest technological advances in safety, ventilation, and aerodynamics. The Protone Icon features Octofit+ that provides greater stability and fit, a stronger internal frame, and a removable and washable inner padding that has Coolmax fabric that helps wick moisture to keep you cool. Features Octofit+ dial with greater stability and fit Stronger internal frame that offers greater mechanical strength and better compactness Removable and washable inner padding that has Coolmax fabric that wicks moisture to keep you cool SPECIFICATIONSCore Material EPSClosure system Octofit+Safety Certifications CPSCIntended Use Road, Race Weight N/ASizing Size Small Medium Large Head Circumference (cm)50 - 56cm52 - 58cm59 - 62cm Head Circumference (in)19. 5" - 22"20. 5" - 23"23. 25" - 24. 5" | Kask | Protone Icon Helmet Men's | Size Medium In Black Matt