My dog Macy Gray has never been able to walk correctly due to a hip deformity her prior abusive owner gave her. She was not a candidate for surgery, and in fact they said it could potentially make it worse! We bought these boots after we talked about her inability to walk across smooth surfaces and up stairs. She would not run correctly without her little feet tucking and rolling beneath her. Well today, Macy got her boots! And she is a very happy puppy! She can walk up the stairs. And she can walk across hard surfaces while keeping her balance. What an incredible boot!