I've got two rolls of breathable material left over from equipment I used to get made. This is the three layer G'tex type stuff and is high quality. It's ideal for Bivvi Bags, Poncho's, Basha's etc., and is Royal Blue or Olive in colour.
Here's a pic of an couple of 1m pieces. The fabric width is about 1.40m
There's about twenty metres in the Olive roll and about forty in the Royal Roll.
I'll either sell it by the metre ( 3m minimum at £5 per metre plus postage £5 ) or do it as a job lot and accept £75 O.N.O. for the Olive roll and £125 O.N.O. for the Royal roll plus postage which I would imagine would be around £20 for Amtrak or similar unless you have a usual carrier you use.
The prices are not set in stone and I'm keen to sell this material, so P.M. me if you'd like to make an offer.