Abstract: The present invention is a set of preferably 2 (two) interlocked, but separable containers. There is a primary, free-standing container and at least one secondary container which is releasably attached to and supported by the primary container. Both containers have their own cap or opening for filling and utilizing the contents of each container. Preferably, for sports bottle applications, the combination of the interlocked containers may be held by one hand of the user. Also, preferably the 2 (two) interlocked containers may be easily and quickly separated for individual use.