Patent ID: 7169418

Claim:
A packaging system comprising: a container having a longitudinal axis and comprising a closed bottom, an open top, and a body having an enclosed perimeter between said bottom and said top; wherein said bottom, top, and body together define an interior volume; wherein said body comprises at least one region of deflection disposed thereon, and wherein said region of deflection allows flexion and thereby has less resistance to flexing than the body of said container proximate to said region of deflection; a protuberance continuously disposed around the perimeter of said body proximate to said top wherein said protuberance forms a ridge external to said body; a handle disposed on said body; and a flexible closure removably attached and sealed to said protuberance; wherein said bottom and said body are constructed from a material having a tensile modulus number ranging from at least about 35,000 pounds per square inch (2,381 atm) to at least about 650,000 pounds per square inch (44,230 atm); wherein said container has a top load capacity of at least about 16 pounds (7.3 kg); and wherein said closure has a one-way valve disposed thereon.