We bought a cheap and cheerful cover from ebay - and just measured the external length without the A frame. We thought it would be no good,but three years later it's still in good condition, no tears, no rips, no scratching on the van, and I'd highly recommend it. It is a rainproof fabric with soft lining, and easy-on/easy-off zips. We expected to pay hundreds of pounds more - I think ours was £58.00 for the length of van, but it's still in decent condition - to the suprise of many sceptics!