What is the best diaper for an incontinent dog?

We have a 13 year old male whippet who is incontinent and will pee and poop indoors even shortly after coming back from outside. We take him out often, so his accidents are definitely due to incontinence. He’s been to the vet and is on heart meds and diuretics, which make the incontinence worse, but he really needs them. We have tried regular doggie disposable diapers but he hates them and tears them off as quickly as we put it on him. Any suggestions? I’ve heard of people using toddler pull up diapers and cutting a hole for the tail? Has anyone ever tried that? We just feel very bad for the poor dog, we wake up everyday to a feces-smeared bed. He’s otherwise fine, he’s still a happy dog so euthanasia is not in our plans. Thanks for your helpful advice!

Has the vet confirmed incontinence or are you self diagnosing?

It may not actually be that, or there could be medication to improve his condition.
My female poodle has urinary incontinence and she is on a liquid medication that about 90% fixed the problem.

IF you really have been given the all clear by a vet then yes toddlers diapers with a hole cut for the tail work quite well. A friend of mine uses them on her shih tzu, she also had a male show dog who constantly pees in the house… she uses a wide elastic band and a womens sanitary pad over his penis.
They get used to it eventually it just takes time.