Provided is a bottle including a bottom part having a bottom wall part. The bottom wall part includes a grounding part located at the outer circumferential edge thereof, a standing peripheral wall part connecting to the grounding part from a radial inner side of the bottle and extending upward, an annular movable wall part projecting from an upper end of the standing peripheral wall part toward the radial inner side of the bottle, and a depression peripheral wall part extending upward from an inner end of the movable wall part in a radial direction of the bottle. The movable wall part is disposed to freely pivot around a connection part connected with the standing peripheral wall part so as to move the depression peripheral wall part in an upward direction, and the depression peripheral wall part is formed to have multiple stages.