NFL's use of Guardian padded helmet caps in camp draws support and skepticism - The Athletic
Funky-Looking Guardian Caps Rejected by NFL for Regulation Play, OK'd for Practice - Core77
What are Guardian Caps? NFL's latest padded helmets for added safety
Funky-Looking Guardian Caps Rejected by NFL for Regulation Play, OK'd for Practice - Core77
Guardian XT Football Helmet Cap, Men's, White/Silver
Large Bubble Helmets Are Guardian Caps, NFL's New Safety Measure
Guardian Shipping & Return Policy Description*The NFL Guardian Cap NXT version is ONLY for NFL athletes and college linemen and can be ordered through
Football Guardian Caps NXT (NFL Model)
Guardian Caps: NFL requires use of helmet cover at training camps to reduce head injuries
Guardian Cap Debuts at NFL Training Camps League-wide