I have found that front attaching harnesses are MUCH more effective for pulling. If the dog tugs or pulls, the action turns him/her around to face you - and stops the pulling. I currently use a Ruffwear; it is well made - though I am always on the lookout for a better harness. For some reason my dog is scared to put his head through the loop of the harness, and I have to put a treat in front of it for him to put his head through. Once he puts his head through, he doesn’t mind the harness at all. I think he has just figured out a way to get an extra treat from me.