Thank goodness there is somewhere to ask all these questions!
I couldn't find any Little Additions micro polar fleece at Spotlight but I did come across the bonded, reversible fleece that they call Oxford. It says on their fleece chart (never knew there was so many!) that it is micro polar fleece.
The line was too long to ask questions before buying, so I just got a small amount. Can anyone tell me if it's the same thing and suitable for liners?

On a side note, I asked out of curiosity if they had any PUL fabric. The kind lady didn't know what it was so I described it. She then suggested I buy some raincoat material and sew in on normal fabric...