One thing to know: Beware the harmful effects of throwback unis

The NFL is urging players to use the same helmet throughout the season with the thought being, once a player feels safe and comfortable in a helmet, they shouldn't use another purely for aesthetics. This means many teams will do away with throwback uniforms that necessitate a different style helmet, one of which is the hardhat featuring Bucco Bruce as part of the Tampa Bay Buccaneers' famed creamsicle ensemble.

Mike Florio discusses the development and questions why teams can't just carry multiple helmets of the same type that feature different paint-jobs.