Reinforced fibre helmet S.T.R.O.N.G. , interior foams about it EPS with variable density. Effective ventilation, to 100 km/h it is more than 7 liters of air a second which are diffused in all the helmet. Optical visor of quality NR 1 with anti-scratch treatment and anti-fog High Clear III. Pinlock® and retractable solar shield integrated, anti-fog treaty on the two faces. System A.R.O.S.: Anti-roll-off allowing to prevent that the helmet is ejected in the event of fall. Dismountable and washable interior. Buckle micro-lock. Weight 1570g (+ 50g). Noise level 84 decibels to 100 km/h.Choose the size of his helmet