I am searching for a harness with buckles on neck straps as Kona is not a fan of equipment and that option is probably the only thing we haven't tried. At the moment I'm trying to figure out which size would be appropriate, I've contacted the Customer Service and they suggested xl-m-l (40) according to the provided measurements. Kona weights about 29 kg, girth is 80 cm and neck is cca 54 cm at the lower, wider point. She is 53,5 cm at the witters, with short body (less than 60 cm). I'm not sure about the size suggestion, I'm not even sure 40 mm is a a good idea for a dog that dislikes gear in general. We are not able to try it on before buying it. Does anyone have an experience with PT sizing, does it run big/small? Any other suggestions and experiences with a harnesses with buckles on neck straps?