Ideally, we would like the boots to fit snugly with 1/8
in or less showing around the outside of the orthotic. The closer the fit is,
the better it will work for your horse. Much like people’s shoes, the boot
should be the smallest size that isn’t too small. Issues can arise if the
boots are too large or too small. Boots that are too small will tear out
because your horse’s hoof will rest on the hard plastic and material seam of
the boot instead of sinking into the gel orthotic. Boots that are too large
will be sloppy on the hoof and can spin around, and there is also potential
for the extra material to fold under the hoof as the horse walks, which will
lead to a rub-through in the material.