>  Outside shell extra-light in fibreglass in two measurements for ideal comfort for each size. >  Inside shell in eps. >  Lining in black breathable Japan material, A.S.P. (Antimicrobial Sanitized Protection) treated. >  Ventilation system consists of n. 1 upper aerator and extractor at back, both adjustable. >  Visor injection moulded in polycarbonate, 2.2 mm thick, antiscratch treated with elongated shape to protect user's face. >  Snap visor detachment system. >  Snap chinstrap closure system. >  Sizes available: from XXS to XL