Abstract: A dispensing system for use with a portable container for the storage, transport, and dispensation of fluids, especially liquids. The dispensing system includes an annular collar affixable to such a portable container. The collar is matable with a twist-top having a straw thereon. Once mated, corresponding structures on the collar and twist-stop prevent or inhibit separation. The twist-top can be twisted open to a position in which corresponding interior structures of the twist-top and collar form a fluid channel allowing liquid in the container to flow past sealing elements such as a gasket, and to egress to a contoured surface for sipping hot liquids by a human. The twist-top can be twisted close to reseal and inhibit fluid egress. Alternatively, a rotatable flip straw in the twist-top can be opened to drink cold liquids from the container while the twist-top is sealed in closed position.

Abstract: A dispensing system for use with a portable container for the storage, transport, and dispensation of fluids, especially liquids. The dispensing system includes an annular collar affixable to such a portable container. The collar is matable with a twist-top having a straw thereon. Once mated, corresponding structures on the collar and twist-stop prevent or inhibit separation. The twist-top can be twisted open to a position in which corresponding interior structures of the twist-top and collar form a fluid channel allowing liquid in the container to flow past sealing elements such as a gasket, and to egress to a contoured surface for sipping hot liquids by a human. The twist-top can be twisted close to reseal and inhibit fluid egress. Alternatively, a rotatable flip straw in the twist-top can be opened to drink cold liquids from the container while the twist-top is sealed in closed position.