Things have gotten a little more strict when it comes to security on the show floor of this year's E3. Backpacks will no longer be allowed on the show floor unless you are part of the media or an exhibitor at the show. Anyone else attending the show, including those with a Gamer Pass, can bring a small bag that doesn't go over the 12" x 15" x 6" limit. Swag bags collected on the show floor can be used as well, but once they leave the convention center they cannot be brought back in.