Our Sheep Coats are measured in inches. The length is measured from the base of the neck just in front of the shoulders to the dock. Be sure to push the end of the tape all the way to the sheep's neck. If your sheep is in full fleece and you want to cover all of the spinable wool, then you should include the wool at the rear in this measurement. If the cover is too long and it droops off the rear of the animal and the leg strap drops below the hock, then the coat is too large and the sheep may step out of it.
Remember, that as your sheep's wool grows throughout the year, you will need larger and larger coats. If coats remain on your sheep too long you run the risk of felting or matting the fleece. Most sheep use 4 different size coats each year. Your sheep may go through more or less depending on the breed.