Guardian cap' to prevent head injuries mandated for practices, CFL
Guardian cap' to prevent head injuries mandated for practices, CFL
Concussions Dropped More Than 50 Percent for Players Who Wore
What's with padded helmet caps teams are wearing
Utes using protective Guardian Caps in fall camp
Browns wearing Guardian Caps during training camp
Guardian Caps', NFL's Most Recent Attempt At Preventing Head Injuries
NFL Guardian Caps: How Do They Work? – NBC 5 Dallas-Fort Worth
EXPLAINER: NFL using helmet caps for player safety, research