Abstract: A container of the type operable for housing therewithin another container is provided having a first pair of opposed side walls, a second pair of opposed side walls, and a pair of opposed end walls. The side edges of the first and second pairs of opposed side walls are interconnected along substantially the entire length thereof whereby to form a housing unit. At least one pair of the first and second pairs of side walls embody means operable for purposes of enabling the pair of side walls so equipped to move between a uncollapsed and a collapsed position. The pair of opposed end walls are mounted on the other pair of the first and second pairs of opposed side walls for movement between an open and a closed position relative thereto. Cooperating means are provided on the pair of opposed end walls and the aforesaid other pair of the first and second pairs of opposed side walls operable for purposes of securing the pair of opposed end walls in the closed position.