There stuff isn't smaller just the sizes got bumped down.
Ex. An XL from years past is now a 2XL
The ribbing for this year is a little more relaxed too and they are claiming their apparel sits a little looser, hence taller. So If you want a little bit bigger than your XL I would go 2XL. Or if not here is the link to the 2011 sizing chart. http://www.jiberish.com/info/sizingchart.cfm
And feel free to ask questions in the Jiberish thread. Its not just for showing off how much Jiberish you're going to buy
-It's all just a state of mind...