The story behind those soft-shell puffy Guardian Caps players have
Guardian Caps: Why some NFL players are wearing them in training
The safety story behind the unusual helmets NFL players are
The story behind those soft-shell puffy Guardian Caps players have
What are Guardian Caps? NFL players sport specialty helmets for
NFL's use of Guardian padded helmet caps in camp draws support and
NFL exec suggests Guardian Caps worn to protect players during
NFL hopes to reduce head injuries with helmet experiment – The
Eagles players on Guardian Caps: 'We look a little goofy,' but all