A mate and I got a set between us a couple of years ago (between us because neither of us really wanted both).
Anyway.........................................

They are the ones with smaller pockets on one side. The reason I mention this is that I've put mine on the 'wrong' side. What I mean is that I've put the right one in the left pannier. By doing this, the bulk of the smaller pockets fits into the recess on the inner side of the pannier.

Also, I found that when you open the pannier, the liner tends to 'flop' out into the lid. So I put the most used, smaller items in these pockets and then when I open the pannier the liner 'flops' out and the pockets are on top, not hidden underneath............

unzip, retrieve item, use it, replace in pocket, zip it up, close pannier.

No need to take liner out of pannier for smaller items.

Works for me

.....................May do for someone else too.
Just thought I'd mention it,
Poppy