Abstract: A drinking container lid assembly a lid body, a closing mechanism, and a lockout mechanism. The lid body includes a drink opening. The closing mechanism attaches with the lid body and is movable between an open operating position and a closed operating position. The closing mechanism allows the flow of liquid from an associated drinking container through the drink opening when in the open operating position, and precludes the flow of liquid from the drinking container through the drink opening when in the closed operating position. The lockout mechanism includes a movable member biased toward liquid in the drinking container when the lid assembly is engaged with the drinking container. The movable member is configured to engage with the closing mechanism to inhibit moving the closing mechanism from the closed operating position to the open operating position when pressure in the drinking container exceeds a predetermined threshold.

Abstract: A container includes a base and a side wall integrally formed with and extending upwardly from the base to define an interior volume for holding a substance. The side wall and the base are formed of a microwave-safe material. The side wall has an outer side wall surface facing toward ambient and an inner side wall surface facing toward the interior volume. The side wall has a first region in which a wall structure is located offsetting the outer side wall surface on the wall structure from a recessed outer surface, which is offset outwardly from the inner side wall surface and inwardly from the outer side wall surface on the wall structure. The side wall is configured to be gripped by a user's hand in the first region and the wall structure allows for air pockets to form between the user's hand and the recessed outer surface.