Combination Bottle and System

The combination bottle system of clam 1 in which each of the top unit, the base container unit and the capacity adding unit are comprised from a group of materials including:

• stainless steel, aluminum, PET, copolyester, glass, PS, AS, bio based polymers, PE, PP, PPSU, BPA, PES, acrylic, bamboo, melamine, and PA.

A combination bottle system comprising:

• a base container unit configured to retain liquids, the base container unit having an open mouth with a base unit perimeter lip having an attachment configuration;
• and
• first and second top units, each of said first and second top units having a top unit perimeter lip having an attachment configuration mateable with the attachment configuration of the base unit perimeter lip, said first and second top units each exhibiting a different functional end, each of the

A combination bottle system comprising:

• a base container unit configured to retain liquids, the base container unit having an open mouth with a base unit perimeter lip having an attachment configuration;
• and
• a first capacity-adding unit configured to retain liquids, the first capacity-adding unit having a first perimeter lip having a first attachment configuration and a second perimeter lip having a second attachment configuration, the attachment configuration of the base unit perimeter lip being mateable with the first attachment configuration of the first perimeter lip or the second attachment configuration of the second attachment lip, the first perimeter lip of the capacity-adding unit and the base unit perimeter lip of the base unit being each configured with a projecting configuration so that when the first attachment configuration of the first perimeter lip of the capacity-adding unit and the attachment configuration of the base unit perimeter lip are mated, the combination bottle exhibits a neck.

A combination bottle system comprising:

• a base container unit configured to retain liquids, the base container unit having an open mouth with a base unit perimeter lip having an attachment configuration;
• a capacity adding unit configured with first and second attachment configurations, the first attachment configuration being mateable with the attachment configuration of the base container unit;
• a first top unit having a functional end and a first top unit perimeter lip having a first top unit attachment configuration mateable with the attachment configuration of the base unit perimeter lip and the second attachment configuration of the capacity adding unit, each of the capacity adding unit and the base container unit having double walled construction.