I found a very good supplier of durable vinyl waterproof pants...which I order through Amazon. The best diaper is to simply use a nice thick bath towel folded up in the following manner:
Fold it lengthwise in half, then fold it lengthwise in thirds. (the diaper will be approximately six to eight inches wide).
Finally, fold it the opposite direction in either three or four folds to make it according to your preference. It all depends on whether or not you want the bulk in the front only or if you want it to extend all the way from front to rear. I find that it is more comfortable to just pad the front, then if you want to pad the rear, find a smaller towel and fold it to whatever appears to be comfortable, and slide it in. The pants come in packages of three and each one will last about six months depending on your frequency of use. If you want specific information on the pants, please reply.