I used some of the PUL fabric at JoAnns for a travel dirty clothes bag. It is waterproof, has a nice hand and I don't think wind would get thru either. It mostly comes in kiddy type patterns as it was made for bibs and diaper covers. I found a black and white zigzag that is easy to see in my suitcase! It would work well on one side and you could sit on it (with the PUL down) if the seats are wet. It is not located in the fabric area but I found it near the trims and elastic. It comes on a roll or bolt (I forget which)