Uniforms - ABC7 San Francisco
49ers' new alternate uniform is unoriginal, outdated - ABC7 San Francisco
49ers announce new red alternate throwback jerseys for 2021 to honor their 75th season in NFL
Uni Watch's Friday Flashback -- Why San Francisco 49ers' 1991 helmet redesign was historic failure - ESPN
San Francisco 49ers Get New All-Black Alternate Uniforms - WearTesters
49ers news: Where are the 49ers alternate helmets? - Niners Nation
How former NFL player Colin Kaepernick and the Capitol Hill Riots are a contradiction of what justice looks like. - Indy100 Conversations
Crunch time arrives for 49ers
San Francisco 49ers Get New All-Black Alternate Uniforms - WearTesters
49ers Missed the Memo; Black Uniforms are Out
49ers Unveil Alternate Throwback Uniforms at Annual State of the Franchise Event
Photo gallery of 49ers new throwback alternate uniforms for 2018 - Niners Nation
San Francisco 49ers give sneak peek of all-black alternate uniforms - ABC7 San Francisco
Uni Watch's Friday Flashback -- Why San Francisco 49ers' 1991 helmet redesign was historic failure - ESPN
Source: 49ers to introduce new alternate uniform for 2018 - Niners Nation