Surf helmets have been around for decades but the recent photo of big wave surfer Kai Lenny holding his cracked helmet after a heavy wipeout, highlights the difference wearing one can make.

(This story has been updated to add new information). Nico Iamaleava's helmet was cracked on the very first drive for Tennessee football in its College Football Playoff first-round game at Ohio State.

Tennessee quarterback Nico Iamaleava was hit so hard in his Volunteers’ College Football Playoff game against Ohio State on Saturday that his helmet cracked. The Buckeyes got the ball and scored ...