Abstract: A flowable material container comprises an outer container, including a circumferentially extending, flexible fabric sidewall with stiffeners mounted within pockets in the sidewall, and an inner bag. The stiffeners may be removable to permit the support container to be placed in a collapsed, shipping state. A vertical lifting element may be associated with at least one of the inner bag and the outer container. The sidewall may be circumferentially expandable to provide access to the inner bag. The sidewall may also include a door to provide lateral access to the entire interior of the outer container when opened.