Not much different from normal tweed other than the fact that it's infinity tweed. Most people can't tell the difference anyway.
Are there any Savers around you? Or is that just here? haha They have a pretty large selection, most of the time, and I wouldn't be shocked to find something like a fez there. At the one by me there were four of these: I really wanted to get one but I'd forgotten my wallet and my mom was... not enthusiastic about spotting me the cash for that.
It sucks because Toracon is in a month. And aside from the jacket, bowtie, and fez, I still need a wig, my tickets, and hotel reserves And I don't know who else I wanna be beside the Doctor. >_>