These are the best harnesses for little dogs
342308
These are the best harnesses for little dogs ... but buy a size larger than you think your dog needs (the head openings are small).  I purchased a medium for my 10 lb dog.  The head hole on the small size I purchased at the store didn't fit over her head/ears (too snug).
926667
I love the puppia harnesses! I've bought these for my dogs since they were puppies now into adult hood. They seem comfortable on the dog, and are adjustable underneath them for a good fit. They're easy to slip over my dog, and to take off. They already know to give me one paw so I can slip them on, so they definitely don't mind the on/off.
1635998
THe best harness ever.  My 5 lb maltese pulls constantly, this harness fits her perfect (size small) it has a clasp which ensures her safety, it is made with great detail, and it never touches her little neck so not to choke or put pressure on her trachea.  The material is light weight but very, very durable and it washes in the wash machines with no shrinkage.  I bought two of them, no pet stores seem to carry this item.  I highly recommend it.
749968
I prefer to use a dog harness over a collar when Im taking my puppy and dog for a walk. My 4 months puppy (Australian shepherd) is a red tri aussie, beautiful little thing. I order her a small black harness, which fit her nicely without being too overly tight on her. The padded harness that went underneath help to take pressure off from her when she pulling.

At her age, she is very energetic and wants to get to everything. The harness really helps her from getting choke, if I was using a collar. The material is nice and after 2  weeks of having the harness and taking her for daily walks, the harness is still in great shape. The best thing about it is that I can wash it and then reuse it on her.

*I received this product in exchange for my unbiased and honest review.
946161
LOVE THESE HARNESSES 
If you own a toy, small dog, or puppy, these harnesses are simply FANTASTIC!
No worries with little legs escaping leg holes that are oversized, or your little wiggly one twisting themselves into a pretzel to escape somehow, because if you order the proper size your precious monster is secure!!!
I've ordered six of these, not because there was anything was wrong with the product, but because my dog (the smallest in the litter) grew a bit larger than the breeder expected, and I didn't want to be without this exact harness, so I've purchased one for each stage of her growth.
I highly-recommend this for your small dog, you won't be disappointed.
The harness is well-made with a high-quality locking clip, plus heavy-duty velcro that sandwiches your pup in, like a second skin, for a nice secure fit.
3080555
These harnesses are a miracle for dogs that love to pull.  I've used it on all three of my dogs and it practically eliminated pulling in a matter of days.
2840638
This is THE BEST harness I have ever seen. The reviews are on spot. I won't buy any other. My Morkie is 85lbs.  The small fits him great. I adjusted the strap around his belly and perfect fit. There is a Blueberry Leash in the Olive Green that is the match. I bought it too.
2342458
These are the only harnesses we use.  They don't impinge the dogs shoulders and they help with pulling, would highly recommend.
2403220
I've been using these harnesses for my Border Collie and German Shepherd for well over a year now. They're very comfortable for my dogs, fit well, and don't irritate their skin like most harnesses do. I love these things and am currently looking for more in the large and medium sizes. I highly recommend this harness.
811393
These harnesses work very well and are very sturdy, yet comfy. I like the way they do not dig into the dog's flesh when they pull like the strap harnesses do. You can also adjust the girth (velcro strip) to accommodate a light weight sweater in winter to fit under the harness. I have just ordered my second one. Highly recommended. Just be sure to measure exactly as they say so you get the right size.
4539021
Best small harness I have found!  We are on our 3 size as our little Pom grows. She is 11 lb and is wearing a large. The step in design is much easier to put on and Velcro pad and buckle keeps her secure. Very well made.
1873415
I have a small dog and this is perfect for her when I take her on walks, its fits well and it is so much easier to take her out for walks with this harness.
343763
i love these harnesses - they are super easy to get on and off and the dogs can't wiggle out of them.
27413
These are the best. Bought the first one for my pug because nothing else would adjust for his big chest and little body. It was perfect. And super easy to get on and off. I have now bought them for my other dogs as well.
1450958
Just love these harnesses and so do my dogs. Easy to put on and I wash them in the washing machine in a lingerie bag and air dry them. They stay looking new for a long time.
2855750
I have been searching for months for a harness with all the features of this one. My little shih tzu wears it without any pressure on her throat (she is prone to reverse sneezing when her neck has any pressure on it). The leather will last forever and is narrow enough to not be bulky. There are four metal buckles to allow for a good fit. The metal buckles are easy to manipulate (I hate those plastic ones) and hold securely.
1546617
This is the second harness I've bought from this company. They fit small but work well for my small rescue. My puppy now weighs 8.5 lbs and takes a medium. When we first got him he was 3.5 lbs and took a small. The quality is great!!!