Giro Advantage 2 Helmet Matt Blk/Glowing Red/Blue - Small - Giro 2015 Advantage 2 Helmet; - Year in and year out, more riders turn to the Giro Advantage when they race against the clock. - With more than a decade of wind tunnel testing and a list of victories from the Olympics to Ironman to the Tour de France, it has proven time and again to be at the pinnacle of aerodynamic performance. - And with deeply channelled ventilation and a fully adjustable fit system, it's cool and comfortable enough to go the distance. FEATURED TECHNOLOGIES; - Wind tunnel-aided design; - combines active vents in the helmet's shell with exhaust channels inside the helmet that thrust fresh, cool air over and around the riders head while forcing heat and stale air out. - In-Mold polycarbonate shell with EPS liner; - this process permanently fuses a light yet durable outer shell with the helmet's impact absorbing EPS foam liner, enhancing the strength of both parts. - 5 vents.