Simple answer--the IRS says no--UNLESS it is clothing that is a uniform, clearly branding you as a worker. So if you can get it off the shelf and wear it most anywhere, that's a no :-(.
On the other hand, if it's a statue of liberty costume to wear waving people down on the street, that would be a yes.
It it's a judgement call, make your best judgment and the IRS will probably never ask you about it anyway.
So if it's tan slacks and a red polo with a discrete brand name and you are always saying, "It's my pleasure," you can probably deduct the cost even if you occasionally wear it to church when your workplace is closed ;-). (Do they make their workers pay for those?)
