EOS, BASF, Kupol (and 3D Printing) Big Winners of the NFL Helmet Challenge
A brief history of Football helmet technology
Better helmets, sensored mouth guards part of effort to make football safer
Material for safer football helmets may reduce head injuries
3D printing advances on-field protection for football players - Make Parts Fast
Large Bubble Helmets Are Guardian Caps, NFL's New Safety Measure
The safest helmet in football: What's inside the NFL's newest headgear
This Could Change Hockey Forever…, by Jacob Appleton
Football helmet with liquid padding may prevent concussions
Coming soon to a cycle helmet near you? Boeing and General Motors-owned firm says its microlattice pads makes helmets better at absorbing shocks