Source: 49ers to introduce new alternate uniform for 2018 - Niners Nation
San Francisco 49ers uniform: Team unveils new black alternate - Sports Illustrated
Dallas Stars unveil new black and neon green alternate jersey
LOOK: 49ers unveil new black alternate uniform
49ers reveal throwback alternate jerseys 2018 - Niners Nation
New alternate uniforms will be unveiled by individual teams - NBC Sports
Cleveland Browns unveil new white throwback helmets
49ers unveil first alternate uniform in team history
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49ers Unveil New Throwback Alternate Uniforms for 2018 Season, News, Scores, Highlights, Stats, and Rumors
San Francisco 49ers give sneak peek of all-black alternate uniforms - ABC7 San Francisco
Update] The #49ers will wear 1994 red throwbacks for four home games next season, and white throwbacks for two road games. The NFL usually allows teams to wear alternate uniforms twice per
Happy third anniversary to the 49ers black alternate uniforms - Niners Nation