Except once. That was 25 years ago this month, when the San Francisco 49ers unveiled a helmet design that was so bad, and triggered such overwhelmingly negative fan response, that the team ...

Time to buckle up your chin straps, UNC Charlotte: The 49ers will introduce the school’s first football helmet design on Wednesday. Time to buckle up your chin straps, UNC Charlotte: The 49ers ...

Helmet designers have so far failed to account for a key cause of brain injury—the kinetic energy that travels through the head after an impact and makes the brain slosh inside the skull.