A package , the package comprising: a first flexible polymeric sidewall having a first perimeter and a second flexible polymeric sidewall having a second perimeter , the first and second flexible polymeric sidewalls being joined by opposing first and second sides and a bottom portion and together defining an access opening to define a maximum volume and depth of the package ; a first magnetic region disposed on the first sidewall ; a second magnetic region disposed on the first sidewall in a spaced relationship relative to the first magnetic region ; a third magnetic region disposed on the second sidewall ; a fourth magnetic region disposed on the second sidewall in a spaced relationship relative to the third magnetic region ; wherein the first and third magnetic regions are magnetically engageable with a magnetic force to urge at least a portion of the first and second sidewalls into contacting relationship, and the second and fourth magnetic regions are magnetically engageable with a magnetic force to urge at least a portion of the first and second sidewalls into contacting relationship; characterized in that the package comprises a first state when the first and third magnetic regions and the second and fourth magnetic regions are each partially magnetically engaged in a first position to define a first enclosed volume (V1) ; and the package comprises a second state wherein the first and third magnetic regions and the second and fourth magnetic regions are each relatively more fully magnetically engaged in a second position to define a second enclosed volume (V2) which is less than the first enclosed volume. a first flexible polymeric sidewall having a first perimeter and a second flexible polymeric sidewall having a second perimeter , the first and second flexible polymeric sidewalls being joined by opposing first and second sides and a bottom portion and together defining an access opening to define a maximum volume and depth of the package ; a first magnetic region disposed on the first sidewall ; a second magnetic region disposed on the first sidewall in a spaced relationship relative to the first magnetic region ; a third magnetic region disposed on the second sidewall ; a fourth magnetic region disposed on the second sidewall in a spaced relationship relative to the third magnetic region ; wherein the first and third magnetic regions are magnetically engageable with a magnetic force to urge at least a portion of the first and second sidewalls into contacting relationship, and the second and fourth magnetic regions are magnetically engageable with a magnetic force to urge at least a portion of the first and second sidewalls into contacting relationship; characterized in that the package comprises a first state when the first and third magnetic regions and the second and fourth magnetic regions are each partially magnetically engaged in a first position to define a first enclosed volume (V1) ; and the package comprises a second state wherein the first and third magnetic regions and the second and fourth magnetic regions are each relatively more fully magnetically engaged in a second position to define a second enclosed volume (V2) which is less than the first enclosed volume. <EOS>