I think the proper correx is wipeable .
I use cardboard to line with a raised 'lip' round the sides where the bedding is.
They have a cardboard box to keep the hay in place
C&C are nice and airy but the mess does travel. I put tarpaulins under the cages then do a hoover round with the vacuum hose when the pigs are out being cuddled.
Our boar has a plastic base so he has the rodent safe cat pellets .
The sows have bathmats as a base layer
Then puppy pads + newspaper + hay.
The puppy pads+paper get rolled up and replaced daily.
They don't chew them luckily.
I'm not a fan of fleece myself , unless one of my pigs is unable to have hay bedding or something. You need to brush all the hay and pooh off , wash it in a bag and be careful what you wash it in, pigs have sensitive noses.
Whenever I've given mine fleece bedding and a hay box to eat , they cram themselves in the hay .
Two or three lardy hogs squished into a trug of hay ...... we've voted with our feet Mum, we like hay
.
Keeps them happy .
I do the lids from the C&C panels when DBro cat visits , just using the cable ties but they need overlapping for strength.
Last year I got a brilliant divider from Costco (they leave the boxes and packing out at the tills) . It was like a criss cross of card in a # shape . I cut doors in the card so they could wander round the little 'rooms' (kept them amused) 
Once the cardboard boxes are dirty they get replaced .