Just for argument's sake, before I head to sleep after conceding that if I 'just wait til I've won a game of solitaire' I might still be here in the morning -

I use microfleece topped boosters as inserts - I just put the it so the microfleece faces away from the bum, on the underside (hope that makes sense) and as close to the outside as possible - so in a pocket, the microfleece touches the PUL. Ideally, in a pocket you'd have any microfibre (which is what my microfleece topped boosters are made of) closest to the butt (but not touching skin) to do the quick soaking, but I don't have any plain microfibre boosters - yet!

I'm with Gigi - if you want fleece all over the inside, go and buy some, if you can. No idea what name it's under at Spotlight...baby fleece?