My Golden Retriever/Tibetan Mastiff mix loves the snow and cold. He pulls the sled and runs around acting like a puppy again. But after a while the snow gets stuck in the hair between his toes and I end up having to pull it out. He has a really thick TM-like coat, so I know he's not cold, but does the ice and snow between his toes hurt and should I buy doggy boots? Do they even have any to fit my 115 pound dog with huge feet?