The uniform debuted in 1921 when the Acme Packing Company bought out Indian Packing. In that year, the team became known as the “Acme Packers”. Yes, the Packers name is derived directly from a meat packing company. From 1922 to present, the team became known as the Green Back Packers. The 1921 jersey featured lettering was raised and made of felt – to help the ball carrier secure the football easier. Also note how high the pants are – they are designed this way to protect the kidneys – a different look from subsequent years. Finally, note the leather helmet – which some but not all players wore to provide (at best!) minimal protection.