Abstract: A container holder for clamping to a tubular support member. The container holder comprises a base member for supporting on its upper surface a tubular container open at its upper end. The lower surface of the base member includes an adjustable clamp for adjustably gripping different sized tubular supports. The container holder is either formed of rigid or flexible insulating material. When rigid, the container holder, base and adjustable clamp are formed as an integral unit. When formed of flexible insulating material, the container holder can be fixedly attached to the upper surface of the base member or removably attached by means of Velcro.RTM. hook and eye fastening material. The clamping means may be located on the rigid container intermediate its ends.