REV 19 is Airohs modular convertible helmet that stands out in the flip-up category. Its 2-in-1 (full-face/jet) versatility combined with an extra-wide field of view, an inner sun lens, an anti-fog visor and a comfortable, perfectly removable and washable lining make Rev the best choice among modular helmets, a real rev-olution. Its special Airoh Combined Ventilation System (ACVS), its double P/J certification, a special patented 180° chin-guard rotation system, the opportunity to connect Bluetooth systems, its windstopper in 2 configurations (winter/summer) and its micrometric retention system are the conveniences that make this product highly versatile and comfortable for demanding and uncompromising riders.