To measure the hackamore, first, find the top of your horses’ nasal cavity with your fingers. You will be able to follow it up and feel where it stops. Then place a piece of string or measuring tape on one finger with above the spot where the nasal cavity ends. Take the string/measuring tape from the centre of the nose down to the groove under the chin. Go under to the centre. This will give you half the circumference of the face. Double that number to provide you with the full circumference of the place where the hackamore will lay. With that measurement, you can choose the right size for your horse.
We normally recommend two wraps and a rein with a half hitch over the top of the rein. Three wraps under the rein in also ok. Anything over three wraps can cause the hackamore to bounce, especially at the lope.
If you already have a hackamore which fits your horse, please measure it as illustrated in the second picture. Hold the front part 4″ apart (horizontal arrow) and then measure from the inside of the nose knot to the inside of the heel knot (vertical arrow) to get the correct length.
