A framework for a pop-up structure is provided comprising three or more loops (18, 12, 22) and a plurality of resilient deformable elongate members (14) extending between adjacent loops. The elongate members are pivotally attached to the loops (18, 12, 22) and the framework is extensible between a collapsed condition and a expanded condition, upon rotation of one loop relative to an adjacent loop. There is also provided a pop-up container comprising said framework and having an attachable cover.