Abstract: A bag-like, flexible base member having flowable, granular particles therein is secured to the bottom of a rigid frame member having insulated interior walls to provide an insulated cup holder that may be placed on uneven surfaces without spilling a portable contained in a cup held by the novel holder. The frame may be co-extensive with or extend above the insulation that lines the interior of the frame. In the embodiment where the frame extends beyond the insulation, a screw-threaded, rim-mounted member enhances the integrity of the structure. In another embodiment, the holder is surrounded by the bag-like base member.