NFL's Safest Helmets Absorb Impact With 3D Printing Instead Of Foam
Personalized helmets based on 3D scans could be the future of football
NFL awards $1.37M to helmet design contestants - DEVELOP3D
Material for safer football helmets may reduce head injuries
Large Bubble Helmets Are Guardian Caps, NFL's New Safety Measure
NFL awards a Montreal start-up $550,000 to work on its design for a safer football helmet
Football helmets are creating more problems than they solve
Flexible NFL helmet aims to reduce head injuries
Football helmets have improved but are far from 'concussion proof' – San Bernardino Sun