Abstract: A container (1) for storage or transport of liquids comprises a flexible body (2) which is collapsible and erectable, the body having a base (18) and side walls (7, 8, 11, 12), with pockets (4) therein, and stiffining means (3) in the pockets to stiffen the flexible body (2), wherein a transverse gusset (6) is provided at each corner between adjacent side walls (7, 12, 8, 11), and a reinforcer (5) extends from the corner to the gusset, the reinforcer (5) being provided with stiffening means therein. A liner (not shown) conforms to the octogonal interior configuration of the container body. Two opposite side walls (7, 8) each have two center pockets (4c), and a central joint line (9) between the two center pockets (4c) provides a hinge line for folding of the container. Each side wall (7, 8, 11, 12), reinforcer (5) and gusset (6) may be formed of a single piece of fabric.