To solve the problem that a rear projection (111) hits against surrounding articles to result in trouble in the user's behavior particularly in a narrow footing or space such as going up and down stairs and standing inside a crowded train, since the curved heel shoe with a lower projecting part rollingly moving on the bottom face while reducing a heel ground contact impact through the use of a straight leg walking method is provided with the rear projection (111) that is characterized by a heel ground contact surface (21) moderately protruding rearward.

The rear projection (111) of the curved heel (11) is configured to use a slidable sole (13) which can be pushed and stored in an outer sole (1) and which can be pulled out and set at a prescribed position or to use an attachable heel (14) which can be attached to and detached from the rear heel part of the shoe.