Bike Helmet By Bell With Glow Lights For Women. This is the helmet to be seen in! the Bell glow features not only a light integrated into the rear of the helmet, but the graphics are reflective too! this helmet was designed especially for women - its unique fit system not only allows you to customize the fit, but allows a space for you to wear your hair in a ponytail or bun DESIGN - Specifically for women who are on the go. FIT SYSTEM - Ponytail and bun compatible system designed for a comfortable fit every time. BE SEEN - Increased visibility equals increased safety. Rear light features steady, blinking and flashing modes; while reflective graphics offer added visibility for dawn or dusk rides. AIR FLOW - 13 cooling vents for channeled air flow. SIZE - Recommended for ages 14+, but will fit most heads measuring 52-58 cm. Important: Always take a head measurement. Head sizes and shapes can vary, even within and age range. Using a helmet that does not fit can be dangerous. COMPLIANCE - Complies with the U.S. CPSC Safety Standard for Bicycle Helmets for Persons Age 5 and Older.