Louisville unveils all-black alternate uniform
Cardinals to debut new black uniforms vs. Bengals
Jets Unveil New Stealth Black Alternate Helmet
49ers debut new black alternate uniforms
NFL Week 4 Uniforms: Black Helmets for Saints & Commanders
Jersey worn by Kaepernick on NFL debut put up for auction
LOOK: Commanders debut new all-black uniforms and helmets
49ers debut new black alternate uniforms
Ranking the current alternate uniforms of every NFL team
How 49ers whiffed on new alternate uniform - ESPN
49ers Must Never Wear Atrocious All-Black Uniforms Again - Sports
Which is better? The white throwback or the all black alternates