Romeo Doubs wears a different helmet because he uses a Guardian Cap, which is a soft-shell cover worn over the standard helmet. This cap is designed to add an extra layer of protection and reduce the risk of concussions and head injuries. Doubs began wearing the Guardian Cap after suffering a concussion during the 2024 season, and he continues to wear it for enhanced safety during games. The NFL allowed the use of Guardian Caps in games starting in 2024, and Doubs has embraced this safety measure since then.