Eagles unveil black alternate helmets - NBC Sports
NFL to allow alternate-color helmets for 2022; will Packers consider them for new throwbacks? - Acme Packing Company
Lunchbreak: Vikings & NFL Teams Have Option for Alternative Helmets Beginning in 2022
Ranking the NFL's new alternate helmets from worst to best
The Packers Need Better Alternate Uniforms - Gridiron Heroics
NFL approves alternate helmets beginning in 2022
Chargers News: NFL to allow alternate helmets starting in 2022 - Bolts From The Blue
The New NFL Uniforms and Throwbacks Ready to Take the Field - Boardroom
K-State Wildcats to wear white alternate helmets against Tulane
Bills likely still need NFL to change rules before we see red helmets - Buffalo Rumblings
Back in Black: Eagles get new helmets for Packers game