A favorite of daily commuters and bike messengers with its low-profile, street-savvy design, the Bern Allston Helmet with Flip Visor keeps you comfortably protected while battling urban gridlock and riding through stifling heat. Sculpted with 16 large vents, the Allston prevents overheating in the oppressive heat and humidity of summer. Going one step further for comfort, the performance liner wicks moisture for a cool-wearing feel. Say goodbye to the bulky, egg-shaped designs of older helmets. Bern's Zipmold Technology gives the Allston a lighter, thinner, and low-profile fit, yet it yields a higher strength-to-weight ratio than traditional in-mold helmets. Adding more functionality, the Original Flip Visor acts as a customizable shield. Block oncoming rain and blinding sunshine with the visor lowered, or conversely, flip it up at busy intersections to maximize visibility.