Americans suffered more than 60,000 cycling-related traumatic brain injuries in 2019—about 15,000 more than in all of football during the same period. While no bike helmet is guaranteed to prevent concussions, Bontrager’s new WaveCel breaks ground with a collapsible cellular polymer, lined on the inside of the helmet, that adds an extra layer of protection to better absorb rotational forces on impact than traditional helmets do. In its annual ratings of a helmet’s ability to reduce concussion risk, Virginia Tech gave the WaveCel its top mark: five stars. Prices range from $99 for the youth model to $299 for the WaveCel mountain-bike helmet. —Sean Gregory
Buy now: Bontrager WaveCel
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