I'll second or third that. I buy the closest thing to a hotel shower curtain
I can find in civilian stores, looks like the same stuff they make the sails
for the baby sailboats out of. Some sort of synthetic, never bothered to
read the labels that close. Once every 3-4 months, I run it through the
washer with a load of towels, and hang it back up damp. No mold problems at
all, and I'm a slob. They seem to last about 5 years for me before the edges
start looking frayed. I'll never go back to plastic.

Same here

I will never go back to plastic. I've got a polyester
fabric curtain that is hookless. best thing I ever
bought!