This super light Boss Race features Uvex's exclusive IAS and a monomatic closure which makes for a perfect fit every time. Helmet loosens up after you get going? No need to stop and fiddle with straps, just reach up and click the monomatic mechanism in to micro-adjust on the fly. In-Mould technology means a tough helmet with superior protection for the back of the head. Weight with cross shield: 255g, sizes:54-60cm. Team Cyclist is an authorized Uvex dealer and will honor all manufacturer warranties.