A multilayer structure comprising a polyolefin layer which is Layer A, a tie layer which is Layer B, and a barrier layer which is Layer C, each layer having opposing facial surfaces, wherein: Layer A has a top facial surface and a bottom facial surface and comprises polypropylene; Layer B has a top facial surface and a bottom facial surface and comprises: a) a crystalline block copolymer composite (CBC) comprising: i) a crystalline ethylene based polymer (CEP) comprising at least 90 mol % polymerized ethylene; ii) an alpha-olefin-based crystalline polymer (CAOP); and iii) a block copolymer comprising (a) a crystalline ethylene block (CEB) comprising at least 90 mol % polymerized ethylene and (b) a crystalline alpha-olefin block (CAOB); b) maleic anhydride grafted polyethylene or maleic anhydride grafted polypropylene; and, c) low density polyethylene; and, Layer C comprises a metal foil and has a top facial surface and a bottom facial surface, the top facial surface of Layer C being in adhering contact with the bottom facial surface of Layer B, and the top facial surface of Layer B being in adhering contact with the bottom facial surface of Layer A; wherein Layer B comprises 40 to 75 weight percent CBC based on the total weight of Layer B, 10 to 35 weight percent maleic anhydride grafted polyethylene based on the total weight of Layer B, and 15 to 40 weight percent low density polyethylene based on the total weight of Layer B. Layer A has a top facial surface and a bottom facial surface and comprises polypropylene; Layer B has a top facial surface and a bottom facial surface and comprises: a) a crystalline block copolymer composite (CBC) comprising: i) a crystalline ethylene based polymer (CEP) comprising at least 90 mol % polymerized ethylene; ii) an alpha-olefin-based crystalline polymer (CAOP); and iii) a block copolymer comprising (a) a crystalline ethylene block (CEB) comprising at least 90 mol % polymerized ethylene and (b) a crystalline alpha-olefin block (CAOB); b) maleic anhydride grafted polyethylene or maleic anhydride grafted polypropylene; and, c) low density polyethylene; and, a) a crystalline block copolymer composite (CBC) comprising: i) a crystalline ethylene based polymer (CEP) comprising at least 90 mol % polymerized ethylene; ii) an alpha-olefin-based crystalline polymer (CAOP); and iii) a block copolymer comprising (a) a crystalline ethylene block (CEB) comprising at least 90 mol % polymerized ethylene and (b) a crystalline alpha-olefin block (CAOB); i) a crystalline ethylene based polymer (CEP) comprising at least 90 mol % polymerized ethylene; ii) an alpha-olefin-based crystalline polymer (CAOP); and iii) a block copolymer comprising (a) a crystalline ethylene block (CEB) comprising at least 90 mol % polymerized ethylene and (b) a crystalline alpha-olefin block (CAOB); b) maleic anhydride grafted polyethylene or maleic anhydride grafted polypropylene; and, c) low density polyethylene; and, Layer C comprises a metal foil and has a top facial surface and a bottom facial surface, the top facial surface of Layer C being in adhering contact with the bottom facial surface of Layer B, and the top facial surface of Layer B being in adhering contact with the bottom facial surface of Layer A; <EOS>