shrinkpack

from The Collaborative International Dictionary of English v.0.48

shrink-wrap \shrink"-wrap\, shrinkwrap \shrink"wrap\, n.
   a type of plastic film, usually transparent, that shrinks
   upon application of heat, and may be used to form a wrapping
   around objects that fits tightly and closely follows the
   contours of the wrapped object; -- also called {shrink-pack},
   {shrinkpack} or {shrink-wrapping}.
   [PJC]

from The Collaborative International Dictionary of English v.0.48

shrink-pack \shrink"-pack\, shrinkpack \shrink"pack\, n.
   same as {shrink-wrap}, n..
   [PJC] shrink-wrap