The same rules apply say, if you’re planning to attend an NFL game in the future, and your bag has to fall within 12 x 12 x 6 inches and be “made of clear plastic, clear vinyl, or clear PVC.” ...

Each attendee is allowed one approved bag during the event. The approved bags are as follows: Clear plastic, vinyl, or PVC bags or backpacks of any size One-gallon clear plastic freezer bags ...