I bought a harness that wouldn't put too much strain on my dog. I tried it on once and went for a walk, but my dog is a short-haired breed with thin legs, so it was difficult to walk in and it came off. I think it would be better for dogs with longer fur. For reference, my dog is 6.4 kg, has a chest circumference of 48 cm, and a neck circumference of about 32 cm. It has D-rings on the top and bottom, so I think you can use either one! I have many other items for sale. Please search for #crossgoods. #harness #durableharness #dogsupplies