Footwear characterized by comprising an upper portion (1), a shoe sole (2), and a fastener (3) that connects them, wherein a plurality of kinds of upper portions are exchangeably used by being connected by the fastener (3) with respect to the shoe sole that is made the basis. The footwear is arranged so that the shoe sole (2) is used by being connected by the fastener in such a manner that the kind of the upper portion is changed according to the purpose of use of the shoe. A cover depending from the upper portion or a cover (7) rising from the shoe sole covers the fastener; the fastener is a slide fastener encircling the shoe except the heel of the shoe sole; and the initial end and a portion adjacent the terminal end of the fastener (3) encircling the shoe sole (2) meet each other.