First, ensure the spats are unbuttoned. Tuck the toe of your shoe into the front of the spat, then pull the spat up and back until the arch strap rests securely under the arch of your shoe, just ahead of the heel. Fasten the buttons snugly, starting from the bottom and working your way up. When worn, the buttons should be facing outwards, away from the instep, so that they're visible when viewed from the side.