Football helmets are used in the great game of American football. You wear them on your head obviously. They have a plastic outer shell and a foam padded inside. They also have facemasks, which are used to help protect the face from getting hit. Football helmets also have places where you can put a chin strap to help protect your chin from being injured. Football helmets help you protect your head from getting injured, especially from injuries such as concussions or broken bones. That's the basics of a football helmet.
