the present invention is a collapsible liner for use in a bulk container . the liner comprises a first flexible panel , a second flexible panel , a first seal , a second seal , and a tab . the first flexible panel includes a first longitudinal edge . the second flexible panel includes a second longitudinal edge . the first seal joins the first and second panels near the first and second longitudinal edges and runs generally parallel to the first and second edges . the second seal joins the first and second panels and is generally oblique to the first seal . at least one of the panels extends across at least one of the seals to form the tab , which includes an attachment feature . the attachment feature may be a piece of tape affixed to the tab . the attachment feature may be a strip of fabric or other reinforcement material melted into the tab , sealed within the tab or affixed to the tab via an adhesive . the attachment feature may be a hole with sealed or unsealed edges . the attachment feature may be a grommet or a loop for receiving a hook .