The NBA has a set bag policy that applies to all NBA teams. The NBA bag policy prohibits all backpacks and hard-sided bags, along with any other bags (including briefcases, luggage, purses and diaper bags) that are larger than 14x14x6 in size.
Single compartment drawstring bags and fashion backpack purses will be permitted. Please note that all approved bags are subject to inspection upon entry, and that every NBA arena will be unable to check or store prohibited items during the game. It is only recommended that you take a bag to an NBA game if absolutely necessary.