Taking styling cues from its low-profile, street-savvy design, the Bern Allston Helmet with Flip Visor caters to daily commuters and bike messengers battling urban gridlock and 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 lower 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. The customization doesn't end there, thanks to a micro-adjustable rear dial. Quickly spin this dial to achieve a secure fit without excess slop or movement at high speeds.