It's called Tyvek. It's a Dupont product. I'm sure you can find it in any form you want. I'm sure the name ``Tyvek'' is a big step in that direction.

According to the Tyvek print-specific web site, you can't laser-print on it, though. That includes photocopying. There's apparently an ink-jet compatible form, but I don't know how well that ink would hold up in those conditions.

Your best bet may be to contact a local printer and see if he can help. If they can do a print run of business cards, I can't see why they couldn't do a print run of a hundred full-size sheets.