Thanks very much for the link feeble it is a side by side buggy. It's for a friend of mine. The raincover on that website is £75! Which I think is a bit steep for a raincover when you can buy a double one for £20. We found one other website but the raincover was about the same price. I think she might just have to buy a double and a single.
Thank you for the link though, well keep looking. I just don't understand why it's so difficult to find one