underlay sold at screwfix which way is up ?

I have bought 4 packs of duralay underlay but was wondering which way is up as I thought the paper side was up and the rubber shapes to the floorboards , is this correct as there is a photo on screwfix showing an uplifted carpet with underlay but showing the rubber shapes facing up the way..
It is the Duralay luxury carpet underlay 100lb waffle 9.15mm 10M2 red underlay, please advise someone..

 

Thanks, I thought so but wanted to check.
Just as well as already done 1/2 of it, cheers..