An openable and closeable lid assembly is provided for a beverage container. The lid assembly comprises a lid housing, an actuator and a seal. The lid housing has an upper surface with a drink aperture and an actuator aperture extending therethrough. The actuator extends through the actuator aperture and is positionable in an open position, where liquid can pass through the drink aperture, and a closed position, where the drink aperture is closed. A seal is provided adjacent the actuator aperture. The seal seals against the actuator and the lid housing to prevent liquid from escaping out the actuator aperture.