Brilliant product. I purchased three harnesses for my three Golden Retrievers. Great fit and my dogs very happy and comfortable. My dogs and I do alot of day walking and they have to be on the lead for much of the walks across the countryside. The Ruffwear harness has made such a positive difference to the comfort of my dogs. The dogs seem much more balanced as they walk along. They look really smart in them too! Well worth investing the extra money for this really good product.