A Cycling Helmet That Cools Your Head Without Slowing You Down — wired.com

Traditionally, vent-filled helmets that keep your head cool are costly in terms of drag. Conversely, super aerodynamic models can be stifling sweatboxes for your noggin. Thanks to an innovative new design, Giro’s latest helmet doesn’t suffer from either problem. It’s able to cool your head better than its lightweight, well ventilated Aeon model, and be “faster” than the Air Attack, the company’s aero road helmet.

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