We have a 1-year-old hound mix who we've been trying to train not to pull. We've worked with him on heeling without much success. We also tried the Gentle Leader head collar and the Easy Walk harness but ended up returning both: Since he's a hound, he always wants his nose in the ground and was so frustrated with the head collar and because he's part bassett, he's got a long body without a prominent chest so we couldn't get the Easy Walk to fit him.

After much frustration, a friend told us about the Sporn harness. We weren't very optimistic about how well it would work. Boy were we wrong! From the first walk, it was like walking a different dog. Just the slightest tug and he'd be right by our side. No learning curve, no problems with fit. When we encounter other dogs on our walks, instead of pulling to say hello to them, he just sits and wags his tail. And maybe the best part is that we don't have to hear him hack because of the leash pulling around his throat. Any pressure he puts forward pulls his chest back. He just gets it!

Pros:
- Inexpensive
- The dog doesn't have to wear the harness all the time
- It's super simple to put on and take off
- Our dog can still wear his collar with tags while this harness is on
- IT REALLY WORKS!

Cons:
- The fastener that tightens the straps feels a little chintzy like it could possibly break in the future. That said, we've had the harness for just over two months without any problems. Sporn also offers a lifetime guarantee, so we kept our receipt and proof of purchase just in case anything happens to it.
- Dog hair does tend to cling to the padding that goes under the dog's arms

Highly recommend this if you have a stubborn puller!