All TCS-eco pads come with a choice of either windpro or PUL lined organic cotton fleece
With PUL, fleece helps prevent the pads roaming around in your underwear
Windpro offers a much more breathable barrier to a PUL barrier, however they are both more breathable than cheaper imported alternatives.
The choice between windpro and PUL lined fleece is mostly preference. PUL lined tends to be more security and confidence, most buying for incontinence needs selects this as the backing. Other ways to prevent pads moving around is better fitting pants.
I use scrundies but before I invested in WAHP made pants I wore good briefs aka (Bridget Jones’s) from M&S.