Using a series of inflatable ribs, the all-new Ventete aH-1 bicycle helmet folds like an accordion when deflated to carry as easily as a laptop. When it's time to saddle up, it inflates back into ...

You can trace the roots of the modern motorcycle helmet all the way back to the 1930s and a neurosurgeon named Sir Hugh Cairns. After studying the effects of head trauma resulting from crashes, Cairns ...