What size rag x-cab b2200

Yeah i know this shits been posted before... but i did a search to see if I could find the answer i was looking for.

Anyways... what would you say is the biggest rag that would fit in a x-cab b2200????

A 35x35 isn't the biggest that you can fit in but it looks the best as far as proportions go in my opinion. I don't like the way that the really large ones look when they are closed(basicly all canvas) A 35x35 will let in enough sun to give you a good tan too.