Abstract: A boot or shoe has a gaiter, the lower end of which is permanently affixed by a waterproof join to the boot or shoe's outer surface, circumscribing the said boot or shoe above the sole. The gaiter has an opening extending down from the top, and a fastener, which when closed helps to keep the gaiter in an upright position on the wearer's leg. A gusset is disposed inwardly of the opening and forms a tubular shape when the fastener is closed. A pull cord or other closure at the top of the gaiter is operable to constrict the gaiter's upper periphery around the wearer's leg. This closure inhibits the flow of water into the boot or shoe. When not required, the gaiter folds down around the ankle of the wearer's leg.