Guardian Caps are designed to protect the head from impact. But few NFL players wear them beyond practice and during games. Here's why.

Ed Reed goes on a tangent about the Guardian Caps and questions their effectiveness. Peyton and Eli Manning were mostly silent during it (after Peyton's initial explanation on it) before Peyton changed the subject back to the #MNF game action. #ManningCast #NFL pic.twitter.com/SMX2ZpWOix

This is the first year NFL players have been able to wear the protective shell on their helmets in regular-season games.

Here's everything to know about who wears a guardian cap in the NFL, including the players who have worn the new, protective helmet in 2024 so far.

Ever since the NFL approved the use of guardian cap helmets, more players have begun using them to try and prevent concussions. Former Baltimore Ravens safety Ed Reed never got the chance to wear one during a game and based on the way he was discussing them on Monday,

The elder Manning brother attempted to expand upon why players wear a Guardian Cap as an extra layer of protection, but Reed didn't seem to be buying any of it