A system for manipulating heat transfer includes a thermal sleeve, a vessel and a lid. The thermal sleeve includes a first material and a second material. The vessel includes an outer wall disposed about an inner wall, the inner wall defining a reservoir configured to contain a liquid and the inner wall and outer wall defining a gap therebetween. The lid is configured to open to facilitate adding of the liquid to the reservoir. The thermal sleeve is configured to be positioned within the gap.

Provided herein is a portable power bottle for recharging electronic devices, including body having an opening at a proximal end, the body forming a vessel in communication with the opening, the vessel for containing the fluid to be provided to the user via the opening. The bottle further includes a cap that is removably attached to the body proximate the opening to alternatively open and seal the opening, and a battery assembly attached to the body at a distal end opposite the proximal end of the body. The battery assembly comprising a battery and one or more charging ports, the battery for storing the electric charge to be provided to the electronic device via the one or more charging ports.

A food jar is described that may be used to store and transport food items. The food jar includes a container. The container defines an interior to store a food product. A stopper is sized to close an opening of the container. A base removably engages to a lower portion of the container.

An additive delivery system may incorporate a cartridge system, including a container cap and a reservoir assembly that provides for storage of an additive. The container cap includes a mixing nozzle for mixing of the additive with a base fluid as the base fluid flows from the base fluid container through the cartridge. A one-way valve prevents backflow of base fluid and/or mixed base fluid/additive from an area downstream of the mixing nozzle such that the base fluid supply remains in a pure state.

A transportable flask. The transportable flask includes a bottle, where the bottle is configured to hold a liquid beverage. The transportable flask also includes a cap, where the cap is configured to attach to the bottle and prevent removal of the liquid beverage when in position. The transportable flask further includes a first cup, where the first cup is releasably attached to the bottle and a second cup, where the second cup is releasably attached to the cap.

A transportable flask includes a bottle, where the bottle is configured to hold a liquid beverage. The transportable flask also includes a cap, where the cap is configured to attach to the bottle and prevent removal of the liquid beverage when in position. The transportable flask further includes a first cup, where the first cup is releasably attached to the bottle and a second cup, where the second cup is releasably attached to the cap.

An adjustable additive cartridge that provides adjustable metering of additive to a base fluid as the base fluid is flowing through the cartridge. A spout is mounted for limited rotation within a base element of the cartridge. Rotation of the spout results in varying degrees of flow of additive into a base fluid flow path through the cartridge. The cartridge may be used with a portable beverage container, such as a sports bottle or off-the-shelf water bottle. The supply of base fluid in a container used with the cartridge may be kept in an unmixed, pure state, and other cartridges, each having different additives (i.e., flavors) may be used interchangeably with the same base fluid supply. The cartridge allows a consumer/user to experience different additives, such as different flavors or supplement compositions, for a given supply of base liquid in a single container. A check valve on the cartridge prevents backflow of the base fluid. An integrated filter for filtering base fluid flowing into the cartridge may be provided. The additive cartridge may be sealed to provide for extended storage and to provide a user/consumer with evidence of integrity, quality and/or tampering prior to purchase and/or use. Visual and tactile indicators of the amount of additive being added to a base fluid may be provided. A container may retain a spare additive adjustable cartridge on the container.

An additive delivery system may incorporate a cartridge system, including a container cap and a reservoir assembly that provides for storage of an additive. The container cap includes a mixing nozzle for mixing of the additive with a base fluid as the base fluid flows from the base fluid container through the cartridge. A one-way valve prevents backflow of base fluid and/or mixed base fluid/additive from an area downstream of the mixing nozzle such that the base fluid supply remains in a pure state.

A transportable flask. The transportable flask includes a bottle, where the bottle is configured to hold a liquid beverage. The transportable flask also includes a cap, where the cap is configured to attach to the bottle and prevent removal of the liquid beverage when in position. The transportable flask further includes a first cup, where the first cup is releasably attached to the bottle and a second cup, where the second cup is releasably attached to the cap.

An additive delivery system may incorporate a cartridge system, including a container cap and a reservoir assembly that provides for storage of an additive. The container cap includes a mixing nozzle for mixing of the additive with a base fluid as the base fluid flows from the base fluid container through the cartridge. A one-way valve prevents backflow of base fluid and/or mixed base fluid/additive from an area downstream of the mixing nozzle such that the base fluid supply remains in a pure state.