An improved bottle, container, or fluid carrying waist pack which is shaped to fit in the lower back area of a person, has a retaining sleeve with an opening on one end to receive a bottle. The bottle retaining sleeve situated horizontally at its length relative to the users upright body incorporates components which communicate at its center with a corresponding mating feature on the center portion of the inserted bottle. An improved bottle or container which includes a multiplicity of contours is inserted into the receiving pack for a range of uses from sitting and walking to running and more rigorous activities.