Packers plan to roll out new throwback uniforms
Eagles' kelly green throwback uniforms can return thanks to NFL alternate helmet rule change
Eagles News: Philadelphia continues to tease new alternate uniforms - Bleeding Green Nation
NFL to allow alternate-color helmets for 2022; will Packers consider them for new throwbacks? - Acme Packing Company
Packers to wear new style of 'historic' alternate uniform during 2021 season
Ranking all 11 new NFL uniforms unveiled this offseason
Packers introduce history-inspired alternate uniform
Packers unveiled alternate uniforms that are throwbacks to throwbacks
The Seattle Seahawks' Throwbacks Are Easily The NFL's Best New Uniforms