The Cliff Keen F5 Tornado Wresting Headgear is the perfect storm. Wrestling just got even better with this top-selling Cliff Keen Headgear! The design was based on NASA research to give you a headgear that's 43% lighter than other traditional headgear. Get a better, faster fit thanks to Cliff Keen's PowerTab strapping system. Get better results on the mat and keep your head in the game.