The Bell Event Helmet offers the precise fit, proven impact protection, and well ventilated performance of top level helmets, all at a fraction of the cost. The in mold polycarbonate shell provides a solid structure that dissipates heavy impacts better than the simple joint molding you'll find on lesser helmets. Plus, it keeps the helmet light and ventilated enough for all day rides. Dialing in an ultra precise fit, the Event's Twin Axis Gear TAG fit system conforms to both the circumference and height of your noggin with the simple twist of a dial. 22 deeply sculpted vents disperse built up perspiration and heat for maximum comfort. Plus, the overbrow channels along your forehead usher in refreshing outside air to prevent sweat from dripping down your face.