NFL Players Don't Like 'Unfashionable' Leg Pads
The N.F.L.'s Incredible Shrinking Pads - The New York Times
The American Football Player's Uniform - dummies
Why do NFL players not wear protective cups? - Quora
Wear Knee & Tigh Pads Like NFL Player
How RFID Chips Are Bringing Next-Gen NFL Stats to Your Couch
Guardian Caps: Why some NFL players are wearing them in training camps
Large Bubble Helmets Are Guardian Caps, NFL's New Safety Measure
What are Guardian Caps and how are they helping football teams?
Shoulder Pads Slim Down in Faster, Sleeker N.F.L. - The New York Times
U.Va. Researcher Leads NFL Thigh Pad Testing in Support of New
NFL uniform rules and regulations are strict, in a good way
Gauntlet 3 Football Shoulder Pad, 3X-Large