Abstract: A beverage container (1) comprises a container body (3) including an opening, a cap (5) to close the opening, and a collar (7), mountable on the container body (3). The cap (5) and the collar (7) include cooperating securement means (19, 21) by which the cap (5) may be secured to the collar (7), thereby securing the cap (5) to the container body (3) when the collar (7) is mounted on the container body (3). The cap (5), the collar (7) and the container body (3) are configured such that removal of the cap (5) from the container body (3) causes removal of the collar (7) from the container body (3).

Abstract: A beverage container (1) comprises a container body (3) including an opening and a cap (5) to close the opening, the cap (5) or the container body (3) including one or more bayonet threads (57), and the container body (3) or the cap (5) respectively including one or more protrusions (19) arranged to engage with a respective bayonet thread (57) to secure the cap (5) to the container body (3). At least one of the bayonet threads (57) includes one or more stop members arranged to retain the, or each, protrusion (19) substantially fully engaged with the bayonet thread (57) such that the opening is substantially fully closed by the cap (5), until a releasing torque sufficient to overcome the retention is applied to the container.