Guardian Caps Debut During NFL Minicamps
The Coat of Arms Discussion: How are Serious Concussion Issues Changing Football?
What are Guardian Caps and how are they helping football teams?
NFL report: concussions dropped 50 PERCENT when players wore new 'Guardian Caps' over the summer
NFL hopes to reduce head injuries with helmet experiment
Guardian Cap used by football teams to protect against head injury – The Denver Post
EXPLAINER: NFL using helmet caps for player safety, research
NFL players don Guardian Caps, designed to protect from concussion
Guardian Caps: Why some NFL players are wearing them in training camps
NFL players wear Guardian Caps to reduce head trauma during training camp
Ban on helmet covers sparks controversy
NFL CMO Dr. Allen Sills explains importance of mandated guardian caps during training camp
Chicago Bears: Why players are wearing padded helmets
Padded helmet cover shows little protection for football players - Scope
Guardian Cap - Soft-Shell Protective Helmet Cover : Football Helmets : Sports & Outdoors