I generally sew my own bags, or at least adapt an ready made one, for all my bikes, including my Brompton (see below completely covered in it's slipcover plus some other bags too). My Brompton slipcover was a lightweight denim, but a lighter fabric (just as long as it is firmly woven) could be used too. I have bought an Dimpa bag for the Brompton originally. To tell you the truth, I ended up using it as an fabric storage bag! As for selling you a couple, I am sure someone more closer to you than I am (I am based in Southern California) would best help you in that regard as far as shipping costs go.