A collapsible container includes: a container bottom and a tubular member having a longitudinal axis and a cylindrical wall. The tubular member has an outer surface and an inner surface. The cylindrical wall has a thickness defined by the distance between the inner and outer surfaces, the cylindrical wall having two longitudinal zones of reduced thickness. The two longitudinal zones are substantially 180° apart such that the tubular member is collapsible along the two longitudinal zones to reduce the tubular member to a flattened state, the tubular member having a first end adapted to receive the container bottom, a second end being adapted to selectably mate with a child-resistant container cap. The container bottom is integrally formed with the tubular member and the second end has integral edge structures formed thereon that are configured to cooperate with and engage structures of the child-resistant container cap to effect child-resistant opening protection.
