The Kask Protone WG11 Road Helmet was created for road racing and riding, the PROTONE has been wind tunnel tested and has one of the lowest drags of any vented helmets on the market. With a multi-layer open cell construction, several ventilation holes and the thick Coolmax® internal padding and lining, the 230g helmet allows heat and moisture to dissipate efficiently – dramatically improving comfort and performance without giving up on safety.Kask Protone WG11 Road Helmet FeaturesLightweight (230g in size M)Octo Fit head retention systemEco-leather chin strapHigh visibility reflective detailingCoolmax® inner padding and liningAvailable in sizes S (50-56cm), M (52-58cm) and L (59-62cm)KASK WG11 Rotational Test Passed (for more information, please visitkask.com/safety/)