Please note that the breed guide is a suggestion only and we would always recommend measuring your dog to ensure that the coat you purchase is a good fit. There is a small degree of adjustment in the girth of coats as they fasten with velcro or an adjustable webbing strap. Therefore if your dog's measurements are only a few centimetres out from the girth stated above a standard size coat should be suitable.
I also make custom size coats and the price of the coats are based on the length of the coat. You will find a link on the product pages to the custom sized options.