Jason,

 Hobart is the man.  But if the shirts in your size and color are gone, they're gone.  You can haggle with your teammates and try to trade, but there aren't going to be any more shirts printed.

 And for the record, a shirt is not what you paid for.  A season of ultimate is what you paid for.  Shirts, parties, discs, and various other merchandise are just goodies we throw in for free.

 Loomis