If MLB,NBA and NHL teams wore NFL helmets, this is what they would look like
NFL hopes to reduce head injuries with 'goofy' helmet experiment
NBA NFL helmet mashups look pretty solid - Sports Illustrated
Tracking all the new NFL uniforms and helmets for the 2022 season - ESPN
Ranking each of the NFL's new alternate helmets for 2022 - Sports Illustrated
Combining NFL helmets with local NBA, MLB, NHL teams' colors
NFL training camps: Guardian Cap players are wearing over helmets, why
Combining NFL helmets with local NBA, MLB, NHL teams' colors
NBA NFL helmet mashups look pretty solid - Sports Illustrated
Photos: What if NBA teams wore football helmets?
Packers are using high-tech helmets in hopes of lowering concussions - The Athletic
NBA logos as football helmets