I make Bellybands with or without a plastic barrier.
Pads keep the males drier but makes it harder to potty train.
Without the pads they do not like the wetness against the skin so are less likely to pee in them while wearing them.
My are made with cotton print outside, plastic in the center and fleece inside.
also a link to bands
http://www.yorkietalk.com/forums/showthread.php?t=47697
post # 3, 6 and 10.