Are Seahawks Throwback Uniforms Coming? NFL Approves Use Of Second
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NFL to Allow Teams to Use Alternate-Color Helmets Again Starting
Minnesota Vikings - Wikipedia
Jets Unveil New Stealth Black Alternate Helmet
NFL will allow teams to use alternate-color helmets again
The 2021 Vikings made their own bad luck - Sports Illustrated
First look at the black helmet
NFL approves alternate helmets beginning in 2022
Lions unveil alternate helmet – The Oakland Press
Alternate Helmets. So Hot Right Now. Why Aren't the Minnesota
The NFL is allowing teams to bring back the use of alternate