This is the only harness/ collar that would work for my 100 pound pitbull. He liked to pull me on a leash, I weighed 120, so hard to keep control of him. THIS harness was perfect and made it possible. Complete 360 with no training. Also has padding so comfy for dog. Have purchased multiple and always recommend these.It’s a great product especially for big dogs that like to pull.This is a great harness. Bought another for my other dog. We have used this brand before and it lasted about 5 years. Great product!We love this harness!!! We have a 3 year old standard poodle who has been a puller from day one. We have tried everything, choke collars, pinch collars, and front hooking harness that are supposed to “stop pulling” by turning the dog. Nothing helped! In addition, she hates the old harness and runs the other way when we pull it out. She is fairly well trained and heals beautifully in the house with no leash. We have taken to walking her only in the neighborhood without a leash. She recalls beautifully and runs and sits by my side when a car comes. But her manners disappear in non-familiar places. This harness is a lifesaver! And she loves it! I guess it’s very light and comfortable for her and it works beautifully! It slows her down very naturally without affecting her gait or choking her. We can’t believe the difference!! We are extremely happy with this purchase!I love this product for my large dog who is still learning to walk nicely on a leash. If your dog is very out of control, this product feels slightly less sturdy than should be. But for most uses it is very effective. It's only other downside is if you let your dog walk through tall grass or sticky burrs with the harness on, it is almost impossible to get it off the harness' fleece covering.This is the second product that we've purchased. We used the first one so much we wanted a standby second one. It's such a gentle lead for our large frisky dog. Great product. Highly recommend.Es el segundo que tenemos. El anterior tiene 7 años y esta en perfecto estado. Sporn no fallaNice harness but my dog (60 pound setter) still pulls really hard.