The Green Bay Packers will wear the team’s third jersey, a re-creation of the historic 1929 uniform worn by the franchise’s first NFL championship team, during Sunday’s Packers-Cleveland game.Although the NFL prohibits teams from wearing alternate helmets, there is no such rule requiring them to use the same facemasks in every game. We saw this in Week 2 when the Bears wore their throwbacks against Minnesota:
Due to new NFL helmet guidelines, the team this year will utilize its regular gold helmet without the logo and stripes. A similar helmet arrangement was used by the Packers during NFL “throwback” games in 1994 and 2001.
That's their regular navy helmet, stripped of its logo, but a throwback gray facemask.
The press release is mostly correct about past throwback helmets. In 1994, the Packers did indeed wear their regular green facemasks.