Disclosed are embodiments of straw assemblies for use with liquid containers. In one embodiment, a straw assembly can include a lid coupler operatively coupled by a pivot rod to a straw coupler. In one embodiment, the pivot rod provides an axis of rotation for the lid coupler that is offset and parallel to a main axis of the straw assembly. In some embodiments, the lid coupler is configured to retain a valve and/or a gasket. In certain embodiments, the straw coupler can be configured to retain a seal. In one embodiment the lid coupler and the straw coupler can be provided with, respectively, a lid coupler hook and a straw coupler hook. The lid coupler hook and the straw coupler hook are configured to facilitate removable coupling of the lid coupler and the straw coupler.