Patent attributes
A container holder may include an inner liner, an outer shell, and an intermediate layer in between the inner liner and the outer shell. The inner liner may provide an inner wall. And the inner wall may include a cavity for receiving a container. The container holder can define a first portion and a second portion. The first portion may follow a curved profile and the second portion may follow a flat profile such that a cross-section of the container holder follows a D-shape. The second portion may have a series of openings extending through the outer shell to vent the cavity to an outside. A series of loops may cover the series of openings on the second portion and a pair of clips can be mounted to the series of loops. A bottom vent can extend through the base, the intermediate layer, and the inner liner.