St 501 is a new full-face helmet for touring & sports with a strong racing soul. Both outer shells in high-performance composite HPC fibre – available in two different sizes – & inner EPS shells – available with 4 different densities – ensure a high level of safety while keeping weight down. Modern lines & an aerodynamic design make this product perfect for escapes from the city in the warmer months & all the year round, through its ventilation system that keeps the inside of the helmet cool under any circumstances. The helmet – equipped with a windstopper & a wide inner sun visor paired with a Pinlock® lens – will give riders all the safety they need. Light weight, protection & out-of-the-ordinary design combine perfectly in this new full-face Airoh model. Features HPC (High performance composite) 1400 gr. +- 50 gr. 2 shell sizes Top Vent Rear Vent Chin guard vents Removable & washable inner lining (Hypoallergenic) Double D-Ring Pinlock® lens included Ready for BT commun...