Have you ever experienced your pet pulling the leash when going out for walks and then all of a sudden you hear that awful gasping sound?  It’s probably because they’re choking from the collar that’s restricting their airways when they pull on the leash.  This often happens, so most vets have recommended to switching to a harness so that their throat area is protected.  Ensure that the harness is fitted correctly to size so that they are comfortable walking in it.  And most importantly, for a pet that pulls, a dog harness can prevent bruising around their trachea area.  Better to be safe than sorry.