READ if you have a lunger/puller! I have a black lab mix thats 2 years old, he's 61 pounds, and generally kinda of tall lean build. He's always been the biggest dog at the dog park. He was a rescue that has had little to no socialization, leash training, and has some behavior issues, ESPECIALLY with other dogs. He used to lunge at people, we've worked on it, now he just lunges at dogs. He's extremely reactive with dogs, even somewhat aggressive, so if there is even a dog across the street he will bark like crazy, lunge at them, and goes nuts. A no-pull harness with control is a necessity. The day we got him we picked up an easy-walk harness just for convenience at Petco but we quickly found out it rubbed him raw and chafed him. It was terrible for romps, running, or long stretch of activity. So we got him a ruff gear front range for when he's active. It fit him terribly. If he pulled in a certain direction, or if we were trying to get him to move along, the chest piece loosened and sagged and hung from his body, no matter how snug the front and back of the harness was. The final straw was when he went camping and he lunged at a chipmunk... One of the buckles in the front broke (made of plastic) so it was done for. Also the front loop of the harness was nylon/fabric looped sewed on - it gave me serious anxiety cause it could rip. PROS for the Kurgo Tru-fit Harness: -I love the functionality of this harness, it is exactly what I need for my crazy dog! Almost like a mix of the ruffgear and easy walk harness. When clipped from the back, when he pulls the slack where the leash connects to the harness tightens and the harness becomes snug. For the most part, no matter what direction you pull the leash from it tightens. He hasn't tried to back out of it yet, but testing from my living room I think it will tighten and make it hard for him to do so. -The connector for the leash to the harness creates a handheld, which is amazing for when you need to grab your pooch quickly or forcefully which I often find I have to when we encounter a dog unexpectedly :( Great control. -They give you a ten inch lead which I LOVE. We are working on heeling. A 6 foot leash is not always easy to work with. The 10 inch lead gives you more control. Also doubles as a seatbelt tether (I believe you have to loop the seatbelt through the hand hold of the lead and then buckle the seatbelt) haven't tried this yet but I think its going to work way better than the seatbelt tether with the seatbelt buckle and clip at the end. I've tried those and my dog just yanks them out like nothing. -I love the fit of the harness, except for when using the front loop, see below. Overall it looks sleek on him and when he's clipped from the back or off leash it fits great! Great adjustment points. Haven't needed to adjust the back by the belly. Made very well. -Both leash loops look very secure. I have read reviews of the front loop coming off, but when I got it the loop looks very secure and stable. -ANYTIME he is ever clipped on the leash from the back, he automatically pulls. You will lose your arm. But when I clipped the leash on the back he didn't pull as much as he normally does. Hopefully he will get used to the harness and being clipped on from the back and not pull as much. -All buckles are made of METAL! And you can clip and unclip from the sides, so its easy to put on/off. CONS: - The only con I have for this is that when we clip the leash in front it pulls too much to the side, and its a little too much for my comfort. I'm not sure if this is the mix in him, but 9 times out of 10 harness don't fit his deep chest right. Got him a large, and the front of the harness is slightly too big for him when when the back is snug - I'm wondering if a medium will fit him better, as long as the back of the harness will extend enough to fit his chest. Or maybe we will try our luck with clipping onto the back and training him like that.