Double-walled container

A double-walled container with a bottle shape including a mouth, a trunk, and a bottom, the double-walled container comprising:

• an outer layer body that constitutes an outer shell of the double-walled container;
• an inner layer body that is accommodated inside the outer layer body and configured to be deformed to undergo volume reduction;
• and
• a straight slit that is provided in a pinched-off portion and that passes through the outer layer body, the pinched-off portion being formed in the bottom due to pinch-off using a splittable mold in blow molding, wherein
• the bottom is provided, on an inner side in a radial direction of an outer edge portion thereof serving as a ground-contacting surface, with a substantially cross-shaped recess that is concave toward the mouth,
• the recess is configured by a first-direction recess portion that extends along an extending direction of the slit and a second-direction recess portion that intersects with the first-direction recess portion, and the slit is provided in a region in which the first-direction recess portion and the second-direction recess portion intersect with each other,
• the double-walled container is configured to dispense a content medium by the weight of the content medium and also by squeezing the outer layer body, and
• the first-direction recess portion and the second-direction recess portion both extend to the outer edge portion.