This is why i removed the hard top & got a roller
with the hard top on i found it hard to reach things in the back plus with all the glass people could see what was in there & break in very easy
the roller i got is a roll & lock it can be opened all the way or just a little . when closed it locks into the sides of the tub & the tailgate so the tailgate cannot be opened
its made from aluminium covered with rubber so its light & so far water proof plus i think it looks good

Thanks Chris, that was the one I had on my d40, not an armadillo, come to think of it. Although an earlier model which was slatted and rattley.
Need to look into roof bars more I think....