A sheet container (100) has, formed in the bottom face (bottom gusset 23) of the container body (20), a non-attached part where the film layers are left partially unattached to each other. An filled part is formed by enclosing a filler between the film layers at the non-attached part. A side part of the filled part is a side bulging part (43b) bulging toward the skirt part (80) . The side bulging part (43b) presses a pressed part (80a) above the lower edge (80b) of the skirt part (80) from the inside toward the sideward. The lower edge (80b) of the skirt part (80) is disposed inwardly from the pressed part (80a).