Good harness, Poor fit for a longer dog.
353381
It's a cute harness and overall I think I would recommend it. I purchased it for my 19 pound Havanese and she's a little longer and has a slightly deeper chest than our 15 pound male. She fell into the very end of the medium spectrum so for her it fits kind of odd around her neck and is a bit too loose while it's a bit too tight around her chest. I can make it fit if I only attach the velcro at their ends but this means the clip part gets caught on the velcro and has already frayed and worn quite a bit in just a few weeks. However, it fits our male like a glove and if he needed a new harness I would definitely buy him this one. I still use this on my girl I just have to take time and care to make sure it's on just so for it to work.
1803236
The quality of the harness is excellent--soft, strong webbing, solid hardware, easy to adjust. However, I have purchased several sizes of this harness in an effort to find one that fits my young Weimaraner. I have finally settled on the Large 1" although I only use it for training loose-leash walking because the neck section hangs just a little too low and affects his gait so I don't like to walk any distance with him wearing this harness. This is because the loop on the top of the harness, which I don't use because the tightening effect makes him pull more (!), prevents any adjustment in that area. This is unfortunate, because the rest of the harness allows for a nice custom fit. I think it mightl fit better as he matures and his shoulders fill out and take up the slack, but I'm still looking for something that fits better. I wish this harness allowed for adjustment in the section across the shoulders because then it would be perfect!
3087762
These are nice, cushy harnesses.  I have two dogs & purchased two of these.  This harness is great for my older (15 y/o) cockapoo.  But my 3 y/o Hairy Shit-tzu-dini figured out how to get out of it in three minutes.  So great harness for my old guy... doesn't work for my Hairy Shi-tzu-dini.  But she's figured out how to get out of a few other harnesses, so I don't think the harness is faulty.  I did dock a star b/c I wish it was fool-proof for her.
4331016
I wish the straps would have had more adjustment flexibility to them.  I bought this for my Sheltie who has a long snout and he was easily able to free himself even though the straps were adjusted as much as they could have been.  It would probably work well with a dog that does not have such a long snout.
4895502
This harness does not work well for corgis. Their legs are too short and can easily slip through when the harness is pulled on. It did seem to work well as far as stopping my dog from pulling. However, if you have a dog that both pulls you and requires you to pull them sometimes when they stop for long periods of time, this harness does not work well. Because I have a corgi, if I pulled to get him to move, he could easily just lift a leg a little bit and the harness would slip right over and he would be free. I think it's just meant for longer legs.
2264401
The harness was purchased for a small pom terrier. The harness was too big I guess that is why he kept getting out and running around with out it.
4237087
Great harness but measure your dog because it runs small.
2641142
The adjustable clasp on this harness is great. The lead/leash that comes with it is too short, too bad. The lead that they provide matches the harness but it's too short. I had to buy an other lead, my dog needs more room.
134355
The size XL harness fit my 90+ lb lab/Shepard mix, however the seatbelt attachment didn't fit into the cars attachment.  I had to rig it in order to keep my dog in his seat.  It didn't work out that well.  Also, my dog does not sit still in a car and wants to constantly move around.  It may be better for a dog that can remain calm in a car for more than 2 blocks.
3649082
I think this is a good harness but unfortunately my dog hurt her armpits with it. It seemed to fit her but maybe it did not. I use the Ruffwear harness now that is, at least for her, much better.
2402799
I really like this harness, but the proportions don't fit my french bulldog very well. I have this in both a small and a medium (since I have a growing puppy), and neither one fits quite right. The small is quite snug when going over her head (which is a problem when I'm trying to take it off), but it fits perfectly once it's actually on all the way. I tried the medium on my frenchie and it goes over her head fine, but it is huge on the rest her to the point her front legs don't stay where they are supposed to.

I suppose this is a great harness for a dog with normal portions, but not great for my frenchie. Maybe I'll give this brand another try later when my puppy has grown up a bit more.
2794996
My young adult Chihuahua mix is 9-10 pounds with chest measuring 18 inches.  I couldn't find sizing on the website so ordered a Small and a Medium.  The Medium fits him; the Small doesn't, so I'm returning it.  The harness seems good (I've only had it a few days), but the clasp is impossible for me to open, so I have to use pliers to undo it. I tried putting some WD-40 on it, and maybe with a lot of use, I could open the clasp. However, the velcro strap keeps the harness on him as long as the leash is attached to both D-rings, so I'm not connecting the clasp. I would buy this harness again.
85834
This is a very nice harness. It seems sturdy and very easy to use. However, it runs horrifically small. I ordered a medium for my beagle and this was so small it barely fit my sister's slightly chubby chihuahua. It was my fault that I wasn't more careful in finding a size guide and therefore I only took off one star for the wonky sizing.
1778956
I recently purchased this harness for our 33 lb. beagle mix because he is a puller during walks.  I thought the chest clip option would be a good solution.  The harness is great quality, and the chest clip definitely reduces the pulling - however I gave three stars only because despite the measurements matching up, the "medium" size is an awkward fit and too big.  I was able to adjust it to be snug around his middle but the neck/chest section, even at its tightest, is very loose and it shifts around when we walk, providing a less snug fit and less control than I am looking for.  I am going to order the "small" and see if that works better.
1357721
We like this harness very much. However, we don't like the way the back strap moves up and down the dog's back. The seat belt strap is much too short for large dogs but is perfect for munchkins.
4732779
The harness fit very well. I bought the "Large" size based on the sizing chart. I have a male Dachshund that has a 13" neck and a 19" chest (about 18#). So, that put him in the large size on the chart. The Velcro attachment had enough variation to pull the vest comfortably around his chest. I was surprised by how well it did fit because Dachshunds are usually pretty hard to fit due to their unique body shape. Also, the leg openings were larger than you usually see in a harness; which works out well for him because of his large, muscular front end. It does have a small amount of stretch too; which I assume; makes it more comfortable. I left it on him when he was closed in his porta kennel for a while. Usually, with the strap type harness like we were using, he would have pulled his front legs out of the openings somehow, because they are so short. That didn't happen with the mesh vest, probably due to the small amount of stretch. I think most of the sizing confusion people are having with this vest is that they are thinking "Large"  means a large dog. I think the entire size range for this vest is meant for fairly small dogs and the only way to fit the harness is to go by the sizing chart. I realize it still may not work for all sizes and shapes, but it is a good way to get the best fit.
686354
It's construction is ok and the buckles are excellent. While a great product it does not fit my greyhound correctly. The neck loop is too large while the body loop is the right size. Next size down won't fit either. This seems to be a common problem with the breed rather than harness. Will try resew the neck loop at some point.