What happens when you cancel your membership on runescape?

If you stop being a member on Runescape, your account goes back to being a F2P (free to play) account. You won't be able to use any of your items that are for members, but if you ever go back to be a member everything will come back, all your items and everything. Even after going to a F2P account if you go back to being a member later all your stats for members only will still be where they were when you went to F2P.