Protecting your brain should be cool enough on its own, but just in case you weren't convinced, Leatt created the Leatt DBX 2.0 Bike Helmet and loaded it out with mean looks and a whole bunch of features to entice you. This helmet helps protect against harmful impact and rotational acceleration while keeping your head cool thanks to 20 vents with MaxiFlow air channels that work even at low speeds. An anti-odor washable liner keeps the post-ride musk down too.