Puffy, spongy Guardian Caps could help curb NFL head injuries
Guardian Caps', NFL's Most Recent Attempt At Preventing Head Injuries
Football Guardian Caps NXT (NFL Model)
Quarterback-specific helmet to be available during 2023 NFL season
Football Guardian Caps NXT (NFL Model)
Guardian cap' to prevent head injuries mandated for practices, CFL
EXPLAINER: NFL using helmet caps for player safety, research
Guardian cap' to prevent head injuries mandated for practices, CFL
NFL executive hints that Guardian Caps could eventually be worn in
NFL players wear Guardian Caps to reduce head trauma during