disclosed is a protective patch for a biaxially heat shrinkable , thermoplastic vacuum bag for protecting the bag from puncture by sharp protruding bones in bone - in cuts of meat which are vacuum packaged within the bags . the patch is made from multi - layer film and comprises a layer of linear low density polyethylene and a layer of ethylene vinyl acetate copolymer . the patch is biaxially heat shrinkable and shrinks with the bag . a method of making the patch is also disclosed .