It works
The large diaper wrap was a little tight on my dog even with the velcro at the widest setting, and I was worried that the elastic might chafe him. The extra large size is REALLY big, though. I went back to the large size without a liner, and found that because the diaper has a flannel interior lining it works fine without any additional pad-type liner (my old dog doesn't leak much, just has trouble in the morning when he first gets up). I've got some non-elastic diaper bands in fun fabrics that I keep him in during the day (just in case) and I overnight him in the Simple Solutions elastic pants. They are the only brand I trust to leave him in overnight because they don't leak.