PetSafe3 in 1 No-Pull Dog Harness - Walk, Train or Travel - Helps Prevent Pets from Pulling on Walks - Seatbelt Loop Doubles as Quick Access Handle - Reflective Accents - Medium, Black

Ordered size M for a 50-55lb dog with a deep chest. Design has a lot of adjustment points to dial in depending on the build of your dog. I actually prefer a lot of adjustment points, as other vest-type harnesses did not allow as much custom fit, and those other vest harnesses would cause severe chafing under my dog's "armpits" as a result.The way this 3-in-1 harness is designed, the dog's "left chest strap" has more room to tighten than the "right chest strap". In addition to the two girth buckles, there is a neck/chest buckle to allow the entire device to come unbuckled, so as not to have to place the dogs head through a loop... this is why there's less adjustment on the right side of the chest strap. The middle strap connecting chest strap to girth/belly strap also tightens "front to back" so this gives an extra adjustment to make the harness quite secure. Once the girth strap is tightened I found the neck/chest straps quickly reached the limit for tightening up, so there is more slack in that area than I would have preferred.Overall, I found the overall security and design of the front-clip very effective for turning my entire dog around when she wanted to pull ahead. I'm going to try next, connecting two leashes or a coupler to both front and back loops, for greater security during training as this rescue dog has a tendency to lunge suddenly at certain people without warning.So minus one star for limitations on the chest adjustment, but I would fully endorse this design as it has worked well for managing the pulling behaviour.

My dog tolerates this harness much better than anything else I have tried. Easily washable and dry by morning. Great piece of kit. Made dog walking a lot easier.

It is a good product and well made it just did not fit my dog no matter how we adjusted it.

Fits VERY big! Size down! I have a large breed dog with LOTS of fluff. Normally he wears between L - XXL things. I purchased the large just based on the weight requirements, but it was WAY too big for my boy. Definitely purchase a smaller size than what you think you need! There are lots of adjustment points so you can adjust it. Great, strong quality! Would definitely purchase again.

Very good harness really helps with pulling dog