NFL.com news: Study: Nearly 40 percent of players wore low-rated helmets Also some interesting information. Riddell doesn't have an exclusive deal with the NFL. The players get to choose what helmets they want to wear from whichever company. There were 16 different helmets tested.. Only 1 received a 5 star rating and 5 received 4 stars.. 75% of the players wore Ridell helmets. And over half of them wore one that was given only 2 stars.. (Riddell VSR-4)..