My little one Ben, thinks it is cruel and unusual punishment if I try to put any clothing on him that comes down on his legs. He tolerates the harness vests just fine, but anything with a leg (even PJ's) and he pretends he cannot walk. I have checked and rechecked to make sure they are not binding, but it is just the idea of something on his legs and he can't move. Strange little guy but I won't make him wear anything he doesn't seem comfortable with -- so it is harness vests or nothing.
Other people have only had positive things to say when mine were wearing the harness vests -- especially their matching argyle ones. Sadies has a ruffle and it helps for everyone to pick out the right one for girl and boy. Their hoodies got a positive response too.
My son does roll his eyes at me when packages arrive and they are once again for the pups and not him.