There is provided a shoe capable of suppressing deformation of a member on which the shoe slides. The shoe includes: a first sliding surface 210 which slides on a concave surface of a piston (first movable member); and a second sliding surface 220 which bulges toward a side opposite to the first sliding surface 210 and slides on a flat surface of a swash plate (second movable member). The second sliding surface 220 includes: a curved outer peripheral portion 221 which is provided along an outer periphery of the second sliding surface 220; and a central portion 222 which is provided at a center of the second sliding surface 220 so as to be continuous with the curved outer peripheral portion 221 and has a radius of curvature greater than a radius of curvature of the curved outer peripheral portion 221.