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.” ...

Bags that are clear plastic, vinyl or PVC and do not exceed 12 inches by 6 inches by 12 inches in size. Clear bags may have a logo on one side as long as that logo does not exceed 4 inches by 3.4 ...