Provided is a standing pouch that can suppress the occurrence of a pin angle even if it has a large capacity. A standing pouch for use in containing a 1100-2400mL liquid composition, comprising a pouch body having a sealed portion in which edges of two opposing flexible films are sealed, the pouch body having an interior as a receiving chamber and being generally square in front view, and a gusset portion. And has a first portion disposed apart from the inclined seal portion and the second side seal portion, extending downward from the center in the width direction of the top seal portion, and sealed with the flexible film. Assuming that the maximum length in the width direction of the top seal part is L1, the maximum length in the width direction of the first portion is L2, and the maximum height of the first portion is H1, a value...

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