49ers debut new black alternate uniforms
2023 College Football Uniform Preview - Auburn Uniform Database
NFL Week 2 uniforms: Patriots throw it back, Browns go all-white - ABC7 San Francisco
NFL 2023: New Uniforms, Helmets for 13 Teams
49ers Officially Unveil Red And Black Alternate Uniform, Raiders Mock New Color Scheme - CBS San Francisco
The New NFL Uniforms and Throwbacks Ready to Take the Field - Boardroom
Source: 49ers to introduce new alternate uniform for 2018 - Niners Nation
Photos: Saints practice in London, debut black helmets
2021 CFB Uniform Roundup - Auburn Uniform Database
How 49ers whiffed on new alternate uniform - ESPN