They do have several stands to buy authentic accessories. If you're looking for less expensive options, you'll find plenty in local retail and pharmacy stores.
There is a Fanatics store in the arena, but I would definitely shop around
I think you should stop in the area because your gonna pay higher prices there
Probably the best "place" would be to get it online, presumably well in advance to wear it to the game. The prices at all stadiums are more, at least online you may be able to get a discount
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