a collapsible structure comprising a collapsible support structure having a flexible covering disposed thereon . the support structure comprises a plurality of pole members that emanate from an upper assembly . the upper assembly has first and second hub members that , when brought into abutting contact with each other , cause the structure to assume a fully constructed configuration but when separated from each other allow the structure to become collapsed . in many embodiments , the structure can be converted from its constructed configuration to its collapsed configuration substantially with the use of a single hand . in some embodiments , 2 or more of the collapsible structures may be joined together to form a multi - unit structure . these collapsible structures may include decorative markings on the flexible cover , especially in embodiments intended for use by or entertainment of children .