Abstract: A drinking vessel including a vessel body configured to receive a liquid and a rotating handle assembly. The rotating handle assembly includes an attachment plate secured to an exterior surface of the vessel body. The attachment plate includes a rotation post extending out from a handle engaging surface of the attachment plate, a first plurality of positioning detents positioned in the handle engaging surface of the attachment plate, and a second plurality of positioning detents positioned in the handle engaging surface of the attachment plate. A handle member is rotatably secured to the rotation post and includes a vessel engaging surface positioned adjacent the handle engaging surface of the attachment plate and a plurality of engaging mechanisms disposed adjacent the handle engaging surface.