Yeah, these look very useful, but they cost a lot for what they are. Nomad Travel Store sell these. I just recieved a sil nylon tarp that i ordered from them for only £30. The service was excellent. I ordered it by post with a check and an order form. It took one day for them to recieve the order and I recieved it the next day. I supose this is really down to the great service that the royal mail provide but it is also down to them sending the order off instantly. It said to allow for 10 days delivery <img src="images/graemlins/grin.gif" alt="" />. The tarp is good too. It can be poppered together to form a bivi bag and it has lots of loops and eyelets. I'd recomend Nomad travel store. I don't know if they can deal with international orders though.