I bought a harness from Perfect Fit for my Golden Retriever Cooper and so far, so good! The website guides you on how to measure your dog, and then suggests the most appropriate harness. Arrived quickly, with an information booklet explaining how to fit it. It's a very well-padded harness which looks as though it will be very comfortable for your dog to wear. Cooper certainly seems happy with it! It has two D rings - one on the chest part, and one on the back - which give you options for the kind of walk you want to have. The harness I bought is quite chunky, but that's obviously because it's for a larger dog, and I like the sturdy feel. The website also asks if your dog is a puller (mine is), as this is also taken into account with their recommendation. Very happy with the product!