I received my V5 a few weeks ago (and very happy) and mine came with the cover. It is soft brown in colour and very lightweight and comfortable. Folds back easily and the magnetic 'catch' folds under to disappear completely. I love it! I got mine inclusive with my reader from
https://www.dadirect.com/books/ebookreader.asp in Australia. Maybe if you have no luck elsehere they could help although I couldn't see any on their accessories page.