Giro Synthe MIPS Road Bicycle Helmet. The Giro Synthe MIPS is the pinnacle of road Bicycle Helmet design. Not only does it blend aerodynamics and cooling power, but there's also Multi Directional Impact Protection System MIPS technology which can reduce the amount of rotational force in certain impacts. Suitable for all conditions, all the time, the Synthe rivals standard road helmets with its exceptional ventilation, low weight and good looks. But then when it's tested in a wind tunnel the Synthe is nearly as efficient as the fastest time trial helmets. That's a serious win win situation in our books. Elaborate internal channeling and 19 gigantic vents provide excellent flow through and take cooling power to new levels while its fit is second to none via the Roc Loc Air retention system. It's fully adjustable and creates a gap between the forehead and the inside of the Bicycle Helmet to further enhance the cooling equation.