I have zero experience shipping dogs but I would think that perhaps 2+ "puppy pads" (2, 1 to catch initial "spills," second to catch any overspill), then a towel, then a layer or 2 or 3 of polar fleece. The polar fleece will wick any moisture away, the towel will soak it up somewhat, but most will go straight down to puppy pads which will absorb and lock it in.
That's about what I did when I would travel with my guinea pigs (lol) and they always came out of the carrier super dry and happy.
And ditto to what CLP said!
Fabio - 13 year old Arabian/Lipizzaner gelding
Hazel - 14 year old Angora goat
Atticus - 4 year old LaMancha/Alpine cross goat
Rest peacefully, Lacey.
Last edited by Wallaby; 04-16-2013 at 06:57 PM.