We needed when strong winter cold and snow a paw protection, because our ancient giant else really freeze the hind legs (can no longer walk, paralyzed). As our favorite has flat feet, I bought the size XXL. We use only the shoes on the hind legs, because otherwise he is insecure and forefeet holding up. But with normal front legs and hind feet shod our Hundi can run very well. The sole is also sufficient support (without shoes he slips, too), it is made of rubber with profile, so much better than the thin, smooth synthetic leather soles, which we knew from other dog shoes. The shoe is on the foot / the actual paw; drawn and fastened with two strong and well-fitting Velcro. Like climbing stairs, our Senior however most do not like, although that has already worked. This is the first shoe model, which does not slip after a few meters from the foot and our dog does not bother when walking! We are very pleased with this great shoe! For our Hundi the shoe is a rescue - he can go without not in cold weather! And this one takes the prize also willing to accept that the dog so benefits from the shoes. This shoe model, we can highly recommend it!