We have Alaskan Malamutes, a brother, and sister pair, so it's a constant competition as to who is going to lead when we go for walks or hiking. They do not pull as much or at least as long as they did before and they do not make them cough if they do pull. They are made very sturdy and the material is padded where it would rub on them. They are much happier with these on. I would definitely recommend it to anyone with a dog that likes to pull. We have the sports harness and the sled pro harness and love them both. Next will be new leashes.