"By jove Watson, I do think you've got it!" On page 7, which item on the page would it be? They state, "....'foam backed' fabric (carpet)". Do you want to go in half and half?

I took my hatch door back to Walmart and sure enough, the color is slightly off. (And) yes I did see those same larger sized fleeces on the back wall marked down to $13 while the main isle had a bin full of my $3.00 fleece rolls.

Now I'm going to find a way to secure the 'fabric covered grille' to the hard plastic of the hatch. I'm thinking using small brass colored [#6?] screws would be the last resort.