I have got some from big w $6 for a 3 pack also got some from best and less and kmart for about $3.00 each. They work fine and come in a range of colours. The Big w ones have pvc in them and the kmart and best and less have foam in them. They hold 1 wee fine (no dribbles down the legs) but wet. I would suggest you try one of the cheap ones first and see how you go before spending lots of money on something that you may only use for a few weeks.

Jas and Ella