I bought a vinyl parka for Ricky as well as booties. I think that if you walk your Hav, it's good to have protection against salt on the roads in the winter time, or chunks of ice that can develop between the toes. The reason I got a coat though, wasn't really for warmth, but to cover up some of the hair that gets all clogged up with snowballs! When Ricky comes back in from being on the deck in back, he has the sticky snow velcroed to his belly, under his legs and on his chest. All that snow of course melts all over the floors and he can be wet for a long time.
That WAS the intention anyway......... He's worn the coat twice and the booties 3 times so far. That's it! For the 20x/day he wants out the back door, he just runs out and does his thing, running like crazy on the days where it isn't too cold and back in the house he comes. Wet, dripping, stringy and smelly....... but sooooo very content.
I figure we've got many many winters to come when the coat just might come in handy again. lol