The NFL has a new partner in its fight to limit head injuries: the Guardian Cap. Guardian Caps have become a common sight in training camp, but for the first time, players have the option to wear them in regular season games.

Jabrill Peppers, the former North Jersey high school football star, returned to the Garden State with the New England Patriots on Thursday night.

The padded headgear known as a Guardian Cap is meant to reduce the risk of concussions — and later development of CTE — for NFL players.

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

JACKSONVILLE, Fla. — Browns linebacker Jeremiah Owusu-Koramoah became the first Browns player to wear a Guardian Cap during a game on Sunday against the Jaguars. This is the first year the NFL has allowed players to wear the protective shells over the top of their helmets, designed to help prevent concussions.