for a while i've been trying to find a way to get my 4wd matress on top of the zook and i finally got the solution. after looking for a rooftop bag only to find they were either too big/too small i wound up getting some vinyl from two FG falcon ute covers.
spare parts at work were throwing out a whole bunch of stuff last week and in their pile were about seven sets of tonneau covers. there had been a build up from when we had a couple of new cars needing hard lids or canopies and the customers/fleet companies didnt want the covers so there was no use for them. i took two (should have taken the whole lot but the house is soo small as it is and im already running out of room.
missus got out her sewing machine and this is the end product:
still have another sheet and looking to make another bag for other bulky (but light) stuff.