Guardian Caps: Why some NFL players are wearing them in training camps
Why do some helmets on NFL players have a hexagonal cutout on them (and some do not)? - Quora
It doesn't matter how the guardian helmets look it matters if they work - Behind the Steel Curtain
Ticats' uninspired play leads to first loss of the season - 3DownNation
The Ravens-Steelers Rivalry Stops for (Almost) Nothing
Tiger-Cats face boos as Alouettes spoil Hamilton's home opener with dominant win
Why Alabama football players are wearing padded helmets in practice
Hamilton Tiger-Cats 'closer to a packed house' for opener with Ontario entering Step 3
Home, sweet home: Ticats get back to work at Tim Hortons Field – Hamilton Tiger-Cats