It has come up in the past many times about teams -- and the Cardinals -- perhaps using different helmets, especially with alternate jerseys. It was impossible, because the league said for safety reasons teams had to wear the same helmets. That is changing.
Multiple reports -- that were confirmed in a tweet from an NFL spokesman -- said Thursday that starting in 2022, teams can use alternate helmets.
(Let me make clear that the Cardinals have not said they will be taking part in this and I have no idea if it would even be a possibility. Just saying it is an option.)
The reason it came out now is because teams received a memo noting that teams have to make official they will be using an alternate helmet next season by July 31, 2021. So there will be no alternate helmets this season for anyone. Next year, we will see.
The memo notes that multiple teams have been inquiring about using an alternate helmet. There are rules, if a team is approved. Players must use the same make and model of helmet in the new look as their normal helmet. And teams must practice for a full week with the alternate helmets before wearing them in a game.
No matter how many teams might take part, it'll make for a different look league-wide in 2022. Again, we'll see if the Cardinals take part at any point in the future.