Travel container, system, kit, and method

A travel kit configured for carrying flowable materials onto a commercial airline,

• the travel kit comprising:
• a carrier configured to hold and carry at least one travel container and having a flexible sidewall and a volume of at most one quart;
• at least one travel container comprising:
• an outer wall with a bottom opening, the bottom opening is configured and disposed to receive the flowable materials into the travel container;
• a neck extending from the outer wall, the neck having an outer surface, an inner surface, and a top opening configured and disposed to dispense the flowable materials from the travel container;
• a maximum fill capacity of 3.4 ounces and at least one measure demarcation, demarking at most 3.4 ounces, of flowable materials in the travel container;
• the kit further comprising:
• a removable cap configured to be removably held on the outer surface of the neck and to prevent the flowable materials from exiting the top opening;
• a removable closure configured to be removably held on a lower portion of the outer wall, adjusting or reducing the volume of the container, and for preventing the flowable materials from exiting the bottom opening;
• at least one removable insert having an outer surface configured and disposed to be removably held with the inner surface of the neck;
• and
• wherein the at least one removable insert has at least one of a portion disposed to extend outwardly from the neck and a slot detent in an upper surface thereof, configuring the at least one removable insert for installation in the neck and removal from the neck.