After trying out many dog bathrobes, I finally came across the Siccaro. While others, some more expensive, some cheaper, just don't fit properly, the Siccaro fits perfectly. With other bathrobes, the front legs sometimes slip through the neckline when the dog lies down, the bathrobe doesn't stay where it should and ultimately the couch gets wet anyway.
The Siccaro is relatively expensive, but before buying several cheap products that don't keep their promises, it's better to buy this good bathrobe once.
I don't know whether the bathrobe dries the fur faster, because my long-haired dogs dry extremely slowly. But because the coat fits well, I can leave it on the dog for longer without it being too tight or uncomfortable for him. I can also continue to use it in the car without having to worry about the dog strangling itself, like with other bathrobes.