Seahawks fans take pride in being the 12th man for their team, which is why you'll see plenty of fans holding "12s" signs during the game. They take it seriously. During the playoffs, the city will raise a 12th man flag on the space needle.
The 12s could be a little less obnoxious in Bank of America Stadium on Sunday.
Bank of America Stadium banned fans from bringing large "12" banners to the stadium for Sunday’s NFC Divisional Playoff game against the Carolina Panthers in Charlotte, N.C.
To be fair, though, it’s not just Seahawks fans — no one is allowed to have a sign larger than 2 feet by 2 feet that can be held by one person.
The change comes after controversy over a Green Bay Packers banner Quarterback Cam Newton tore down before its home game against the Packers.
Some Seahawks fans may be trying to find other ways to get their banners in the stadium.