Security - Bag Policy Large bags including rucksacks are not allowed. There are no facilities to leave large bags or luggage. If you really have to bring a bag - and it is preferable you don't, please make sure it's small. Only one small bag per person is permitted and it must mot be bigger than A4 size. Height - 28.7cm Width - 21cm Depth - 15cm Initial Listing and Description provided by Ticketmaster.