A container, comprising: an enclosure including a bottom portion, a top portion, and a plurality of sides which bound an interior of the enclosure, the plurality of sides having a lower perimeter and the bottom portion being formed from a plurality of bottom flaps extending from one or more of the plurality of sides, and a fillable bladder positioned within the enclosure, an interior of the fillable bladder being accessible through an opening in the enclosure, characterized in that a first bottom flap of the plurality of bottom flaps being positioned adjacent the fillable bladder has a flap perimeter which substantially matches the lower perimeter of the plurality of sides such that an uninterrupted bottom wall is provided, wherein the enclosure is formed from a single piece of material having an unfolded state and a folded state, wherein the single piece of material is a corrugated material, and wherein the corrugated material includes a first side, a second side, a third side and a fourth side which form the plurality of sides; a first top flap extending from the first side, a second top flap extending from the second side, a third top flap extending from the third side, and a fourth top flap extending from the fourth side which form the top portion; the first bottom flap extending from the first side, a second bottom flap extending from the second side, a third bottom flap extending from the third side, and a fourth bottom flap extending from the fourth side which form the bottom portion; and a side flap extending from the first side opposite the second side, wherein the side flap overlaps and is secured to a portion of the fourth side when the corrugated material is in the folded state, and wherein the container further comprises a handle, wherein the handle is in communication with the interior of the enclosure and is positioned on a first side of the plurality of sides. an enclosure including a bottom portion, a top portion, and a plurality of sides which bound an interior of the enclosure, the plurality of sides having a lower perimeter and the bottom portion being formed from a plurality of bottom flaps extending from one or more of the plurality of sides, and a fillable bladder positioned within the enclosure, an interior of the fillable bladder being accessible through an opening in the enclosure, characterized in that a first bottom flap of the plurality of bottom flaps being positioned adjacent the fillable bladder has a flap perimeter which substantially matches the lower perimeter of the plurality of sides such that an uninterrupted bottom wall is provided, wherein the enclosure is formed from a single piece of material having an unfolded state and a folded state, wherein the single piece of material is a corrugated material, and wherein the corrugated material includes a first side, a second side, a third side and a fourth side which form the plurality of sides; a first top flap extending from the first side, a second top flap extending from the second side, a third top flap extending from the third side, and a fourth top flap extending from the fourth side which form the top portion; the first bottom flap extending from the first side, a second bottom flap extending from the second side, a third bottom flap extending from the third side, and a fourth bottom flap extending from the fourth side which form the bottom portion; and a side flap extending from the first side opposite the second side, wherein the side flap overlaps and is secured to a portion of the fourth side when the corrugated material is in the folded state, and wherein the container further comprises a handle, wherein the handle is in communication with the interior of the enclosure and is positioned on a first side of the plurality of sides.