Best-fitting harness for smaller to medium dog
350719
We've tried several styles of harnesses for our small b(15 lb) but strong and very active little dog.  Even with good training when she hits a scent trail she can be single-minded and sometimes pulls on the lead.  This is the only style of harness that seems to fit well without pinching.  It goes on easily and is adjustable in the right places.  She is happy to put it on (it means we are going out) and it never seems to constrict her movements, but it does provide the security of a harness as well as distributing pressure across her chest rather than her neck as a collar would.
3903257
A nice snug fit without leaving my very sensitive dog to be uncomfortable. I've had 2 other harnesses for my 6 lb Maltese mix and he was either very uncomfortable with them or was able to get himself out of them. This harness keeps my little escape artist safe and comfortable at the same time. Fast delivery and accurate description of sizing as well.
3591312
Harness fits more on the small side.  Order size up if you are questioning what size to get.  I have a 11-12 lb shitzu mix and medium fits snug on him.  Might fit better once he is groomed shorter.
4213332
I wanted a harness that didn't rub or irritate my shitzu under his legs.  This was soft, the medium size fit perfect, he's 14 pounds. The same harness is at least 10 dollars more in pet stores.  I'm buying him more in different colors.
3159605
Warning: go 1-2 sizes larger than you think you need, the fit is very small. The actual harness works great, is well-made, and very cute, but our <8 pound Pomeranian is slightly too big for a Small, and needed a Medium! If you can try it out at a store in person first, do that. Otherwise, make sure you buy from a seller with no-hassle returns, like Amazon.
3204623
Pretty pink polka dot harness. My dog is 17 inch in the chest and the harness fit perfect. (Got the15-21 inch size).
1399490
These harnesses fit as advertised.  Refer to the photo on the product page labeled 'Recommended Sizing Guide', measure you dog's chest
 & choose the appropriate size.

The harness is easy to put on; no need to lift your dog's legs; just slip the head hole over your dog's head, be sure the handle is on your dog's back, slip the belly strap between your dog's legs & fasten the buckles.

 There are several points that can be adjusted to fit the harness correctly.  Be sure to allow enough room to slide 2 or 3 fingers under the harness.  It should fit snugly, but not tight.

The cushioned handle is comfortable to hold & stands away from the harness so it can be grabbed quickly when needed.
There is a D ring on the back to attach a leash.
It's also advertised that a leash can be attached to the center ring in front.  However, I think attaching a leash to that ring might irritate my dog's skin because the leash's hook would be against her chest and rub her skin when she moved. It would be better if the center ring also had a D ring attached to it.

The leash is washable.
Medium fits our 35 lb labradoodle.  Her chest is approx. 24".

Sturdy construction. The reflective material is great.

To see this harness in action, watch the product video.
2058463
The harness fits my 95 lb husky well. Got the huge size based on description and adjustments are at their shortest lengths. Haven't been able to use it other then a walk around the neighborhood but the pulling is easier to handle.
4771019
This harness fits our 33 pound Welsh Pembroke Corgi perfectly. Appears to be well made with just a little bit of give when our dog pulls hard. I am going to buy a second one for future use because the fit is perfect.
2067437
I have two beagles, which are a common reference point for "medium" sized dogs. This usually translates into product sizes as well. I got this for my full grown dog, and it was nowhere near close to fitting her. I got a medium harness in several other brands to compare, and all were much larger than this. It works on my puppy (she is about 9 pounds), and we can use it for a few more months until she outgrows it. Sizing needs to be updated as I would consider this more appropriate for small dogs.
3459591
Only harness which I could adjust to fit.  Buddy  is a Carin Terrier. Weighs 20 #. Bought a medium.
2129749
This harness looks adorable on my 13 lb terrier mix. She is a very slender dog, and it fits comfortably around her with no chafing. I have purchased the blue puppia soft dog harness, size medium, in the past and had to sew it to fit her better. This medium fit her perfectly with no modifications needed.
2479086
Loves these harnesses; this is our second one
1420156
Great looking and fitting harness!

Although I first put this XL size harness on my dog the wrong way round and thought it didn't fit - my bad DUH!

My dog has a deep 26 inch chest and this adjustable harness fits her perfectly - it would fit a slightly larger dog too.
The material is soft with pads in all the right places. I like that it has two D rings on the back to securely attach the leash.
The red color is very smart too.
Delivery was fast and efficient.
So far very happy with this purchase.
3298187
Bought a small harness for my yorkie (hes 9lbs.) and it fits perfectly, not too loose, not too tight! He loves it, doesnt mind wearing it all the time.
1127537
Fits really well, nice and secure harness. I ordered a Medium and it fits snugly on my (slightly pudgy) schnauzer. No chance of him wiggling out of it and he loves it.
1251916
this harness is perfect for my 11.5lb brussels griffon. but be forewarned: i ordered a large for her, and it's a perfect fit. so, this item is specifically for quite small dogs.