I sent a pdf file that contained all of the game maps for Valor & Victory to these guys -- http://www.fabricondemand.com and these are the results.
This photo is blue as hell for some reason so don't use the color to judge the quality of the print. This is one yard of fabric, with a 60 inch print width. All the maps were submitted as a combined single image and this chunk of cloth is almost corner to corner of the printable region for a one-yard purchase. $22 delivered.
The true colors are brighter than these flash photos show, but I wanted to put a few shots in to show the level of detail. This is on a tight cotton weave.
A very tight close-up. Valor & Victory maps have big 1.25" hexes and the sizing is dead-on-balls accurate (a technical term). The smallest print on the maps is for the hex identifiers -- J5 in the center hex above and it is very readable. The thread grain puts just a hint of ripple in the edges of the pond in the image above.
It's not as clear as paper, but the result is excellent and short of a cigarette lighter likely indestructible. Spills or smears can be washed away and the ability to fold these critters up and drop them in a suitcase could be pretty doggone useful. I can imagine an ASL player printing to both sides and having ALL of their maps on a ten foot roll that they could stuff in their suitcase.
S.