I have a dog that has some neurological problems that affect the balance, coordination, and strength in his legs and we have hard flooring. Even with rugs, he struggles with mobility at times, and I have a drawer full of various dog socks and shoes that I hoped would help. The Summit Trex are perfect! They fit securely, bend in the correct places, and provide unbeatable traction, all without extra bulk that would cause even more tripping. He also wore them outside on a wet day and when he came in, I took the shoes off and his paws were dry! Also, there is a noticeable size difference in his front and back paws, so buying them in packs of two ensures you get a better fit. These shoes have made a noticeable difference in the quality of my pup’s life!