Heat shrinkable barrier bags with anti block additives

A polymer film multilayer comprising: a first layer (28), the composition of said first layer of a mixture of copolymer comprising ethylene vinyl acetate; linear low density polyethylene; one second ethylene-vinyl acetate and slip additive; a second layer (22), the composition of said second layer an ethylene-vinyl acetate and having each of the first and second layers two surfaces; a third layer (24) comprising the composition of said third layer a copolymer of vinylidene chloride methyl acrylate and wherein said third layer being disposed between said first and second layers; a fourth layer (26) being the composition of said fourth layer the same as the first layer, said fourth layer adhered to said first layer on the surface opposite said third layer; and a fifth layer (30), comprising the composition of said fifth layer of a blend of polyethylene and linear low density polyethylene bajadensidad of cleaving said fifth layer to said second layer on the surface opposite said third layer.