I read all the positive reviews with skepticism and did not really think that this halter would stop my highly energetic, overly aggressive, pure-muscle-bound Jack Russell/Sherpherd mix male dog from pulling. Seriously, he is so muscled that he can eat & eat and never gain a pound. He looks like those feral dogs in the movie "I Am Legend".I am not a great dog trainer to begin with, and my dog has undergone some traumatic experiences which make him both fearful and uncontrollably hyperactive in certain conditions, such as right before a walk with two other large dogs, one of whom he is afraid. Pandemonium breaks out as leashes go on and during the first 10 minutes of the walk. After that, he's fine. However, on multiple occasions, those initial minutes have caused me to give up on walks, shed tears, and throw my arms up in utter, expletive-filled frustration. Needless to say, my dog is an AGGRESSIVE puller.I had looked at so many other harnesses and halters that I became tired and just bought this one, not having much hope that anything could stop my dog from pulling. I had already tried the Premier one, which made him jump and shake incessantly in an effort to get it off and it seemed to do the job only half-way (it was weird that the D-ring was at the front of his chest).What made me choose Sporn over all the others were the how-to videos and testimonials on the Sporn website as well as the fact that the D-ring was located at the posterior base of the neck of the dog. It works like a charm. I followed the instructions and gently introduced my dog to the halter, letting him smell it when he was relaxed, lounging on his bed. I petted him and told him this would be his new "walking collar". Then, I slipped it over his head, buckled it, took it off, and adjusted the fit (he weighs 43 lbs with a 16" neck, and the medium fits him just right).The two straps that go under the dog's legs can be placed either one of two ways: by lifting each paw and placing it inside the loop, or by unclipping the small metal snaphook that attaches each strap to the collar at the breastbone, threading it under the leg and back up to the collar, and then attaching the hook. I've walked him three times now with the halter, and I can triumphantly say, with a fair degree of shock, that he NO LONGER PULLS and charges like a rabid ox when I walk him. As the directions instruct, I snugly squeeze the square bungee-type adjuster at the base of the neck (where the leash attaches), and he miraculously just runs in front of me as usual, but at MY pace not his. He actually behaves better on walks. I'm VERY pleased.(Here is a caveat and an rejoinder to the other reviewers who complained about the "flimsy" materials: as the manufacturer literature and Sporn website indicate, this is not to be left on a dog unattended. The collar itself is made of sturdy but regular nylon with the usual plastic click buckle, and the sherpa comfort sliders are cushioned but of a thin fleecy material (I don't use them because he's so distracted that he doesn't care anyway). The restraints that fit under his front legs look like very thick shoelaces. This all sounds rather unsubstantial, but because the halter is so well-designed, it's all that's needed for effective operation. The halter deters the dog from pulling so well that it doesn't need steel cables or extra thick materials because when the tethers are fitted properly and in the right places, there is zero pulling. The light materials make it very light on the dog and give your hand a light feel, too. But this is why the halter should not be left on an unattended dog: because they could very easily get chewed through.)Highly, happily recommended.

I have a large (95lb) dog, so I prefer to walk him on a harness rather than a collar, which can put too much force on his neck if he gets excited or pull. Previously, I have tried many different kinds, the only one I liked being the Lupine harnesses, which are great quality. However, my dog is a Doberman Pinscher and has a very deep chest. Other harnesses, including the lupine, tend to slide around during walks so that the strap meant to go under his chest winds up in one of his armpits. This was annoying both for me and for him, as it was difficult to get the fit right without one area being too tight (chest) or another being too loose (waist).When I saw this listing, I thought it was worth giving a try. It has turned out to be a great investment! I hadn't seen this design before, but it is perfect for dogs shaped like mine. The straps are meant to like in his armpits, so they stay in the proper position throughout the walk and do not cause chafing. There are even tubes of fabric that can be positioned anywhere along the strap to add extra padding! I haven't had any issues with them moving out of place during movement. I have to say my favorite feature of all about this harness is the attachments. Unlike my Lupine harness, I do not have to slide the neck hole over my dog's head or pick up his legs to place them in the harness. Rather, the collar portion has a plastic buckle closure (like most nylon collars) and the under-leg straps have metal clips and D rings that attach them to the top piece. This means that my dog can sit or stand in place and I can attach the halter around him. No more post-walk struggles! Of course, if you like you can leave them clipped always and have your dog step into them, but when my dog is ready to go in our out, the less fuss the better.The collar portion of this halter seems to be very sturdy, it's a 1" nylon webbing. My only mild concern is that the leg straps are made of a webbing that is less wide, only 1/2". I think this is intentional so as to minimize discomfort and risk of chafing, but I do worry that it may not hold up to heavy use and wear as well as my thicker, 1" Lupine halter. This is just a general concern of mine, and only time will tell how it fares in the long run.As far as being a no-pull harness, I can't speak as comprehensively. My dog doesn't pull except for when he is full of energy or sees a squirrel or something. That said, an old obedience trainer of mine had said that harnesses tend to engage a dog's Opposition Reflex. This means that if you pull tension on a harness, they will instinctively and automatically lean forward to counteract the force (Think of how sled dogs work). I thank this harness would be better than most because of its unusual positioning. Since it is not seated at the chest, tension from the leash does not "pull" a dog back in the traditional sense. Instead, it tightens around his shoulders/armpits in a way that seems to be more of a squeeze than a backward pulling force. It should be easier to train your dog to respond to the squeeze with the desired behavior (stopping or slowing down) than it would be to fully negate their opposition reflex.TL;DR: Buy this halter, it's great for big dogs.

This Harness is great, had been struggling to stop my basset hound puppy from pulling when out on walks and this product stopped her pulling right from the the first use. The harness is also ideal for use in training and the dog generally does not seem to mind wearing it. The only problem is I bought the medium size which only just fits so I will need to order a larger size shortly.

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good product

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