Freezer storage bag

A recloseable multibag freezer bag comprising:

• an inner liner bag defining an inner wall of the multibag, the liner bag being formed of a thermoplastic film having (i) a thickness t, (ii) a Transverse Direction two percent Secant Modulus TDSM determined in accordance with ASTM D 882-83 (Standard Test methods for Tensile Properties of Thin Plastic Sheeting), Method A with a jaw gap of 4 inches for test specimens having an initial width of 1 inch, except that the Initial Strain Rate is 0.25 inches per inch per minute with a crosshead speed of 1 inch per minute, and (iii) a calculated value, Z-value, which equals (t3)×(TDSM), of less than 60,000 mil3 psi/100 percent extension, the liner bag having a mouth through which an interior of the liner bag is accessible;
• an outer support bag surrounding the liner bag and defining an outer wall of the multibag, the support bag being formed of a thermoplastic film and having a mouth and a throat,
• the liner bag mouth being joined by a mouth seal to the throat of the support bag along the entire length of the liner bag mouth to form a substantially enclosed air space between the liner bag and the support bag;
• and
• a recloseable mouth seal affixed to the mouth of the support bag to provide recloseable access to the interior of the liner bag through the mouth of the support bag while maintaining the enclosed air space between the liner and support bags.