Source: 49ers to introduce new alternate uniform for 2018 - Niners Nation
49ers Unveil Alternate Throwback Uniforms at Annual State of the Franchise Event
Tracking all the new NFL uniforms and helmets for the 2022 season - ESPN
San Francisco 49ers, But at the end of the day
49ers to wear black alternate uniforms, have black end zones vs. Cardinals in Week 12 - Niners Nation
Photo gallery of 49ers new throwback alternate uniforms for 2018 - Niners Nation
Photo gallery of 49ers new throwback alternate uniforms for 2018 - Niners Nation
Predicting what games 49ers wear their classic throwback uniforms
49ers Officially Unveil Red And Black Alternate Uniform, Raiders Mock New Color Scheme - CBS San Francisco
NFL Week 4 Uniforms: Black Helmets for Saints & Commanders, Throwbacks for Giants, 49ers + More – SportsLogos.Net News
49ers' new alternate uniform is unoriginal, outdated - ABC7 San Francisco