Hi Dippy,my advice is dont.We bought one in July,it's in ripstop nylon,nice and light weight,easy to put up and is great to keep the wind from your door. BUT,it does not fit well to the side of the van,it leaks like a collander!!! I made the mistake on our first night to leave various bits and pieces (like we all do) including a small toolbox and a small battery charger for my remote controlled car.It rained overnight and when I opened the van door I saw all was soaked and the anwing carpet was too,my charger was in a puddle on the table,our chairs were wet through.
So we got rid asap ! and bought a decent one. So my advice is stay clear.