About this item FASHION URBAN STYLE - Built for urban riders and commuters. Fit for men and women. DUAL CERTIFIED - Meet US & EU safety standards. LIGHTWEIGHT & BREATHABLE - Built using integrated construction to reduce weight. Integrated polycarbonate shell with EPS liner enhancing durability. 8 large vents offer good air-flow. SIZE ADJUSTMENT SYSTEM - This bike helmet suitable for most adults head circumference. M size (21.7-22.8inch / 55-58cm) , L size (23.2-24inch / 59-61cm) SAFETY REAR LIGHT - Rechargeable USB rear light with 3 lighting options. Fully charged in 2 hours. Last for about 6-8 hours.
