Bottle

A bottle made from synthetic resin material and formed by blow-molding in a cylindrical shape having a bottom, the bottle comprising:

• a bottom portion of the bottle including,
• a heel portion having an upper opening portion which is connected to a lower opening section of a body portion, and
• a bottom wall portion having a circumferential edge configuring a grounding portion, the bottom wall portion closing a lower opening section of the heel portion, wherein
• the bottom wall portion includes,
• a rising circumferential wall portion continuing into the ground portion from an inside in a radial direction of the bottle and extending upward,
• a movable wall portion having an annular shape and protruding toward the inside in the radial direction of the bottle from an upper end portion of the rising circumferential wall portion, and
• a recessed circumferential wall portion extending upward from an inner edge portion of the movable wall portion in the radial direction of the bottle,
• the movable wall portion is freely rotatably provided having a connected portion with the rising circumferential wall portion as a center so as to move the recessed circumferential wall portion upward, and
• a lower heel edge portion continuing into the grounding portion is formed in a smaller diameter than an upper heel portion continuing into the lower heel edge portion from an upper side.