Alternate helmets returning to NFL in '22 after 9-year pause – The Denver Post
Tracking all the new NFL uniforms and helmets for the 2022 season - ESPN
Picking a jersey has uniform appeal among 49ers' players and fans
49ers Throwback Inspired Alternate Uniforms
Photo gallery of 49ers new throwback alternate uniforms for 2018 - Niners Nation
Photo gallery of 49ers new throwback alternate uniforms for 2018 - Niners Nation
Ranking NFL's current throwback jerseys: Eagles' perfect 'Kelly Green'; high marks for Patriots, 49ers
49ers Throwback Uniform — UNISWAG
49ers Throwback Inspired Alternate Uniforms
49ers unveiling new alternate uniform
Do the 49ers have throwback uniforms coming in 2018?
49ers Unveil Alternate Throwback Uniforms at Annual State of the Franchise Event
49ers reveal throwback alternate jerseys 2018 - Niners Nation