... coffee powder, and also packaging some food which need pretty fresh. Size85X65X330mmShape:Side GussetMaterialPET/AL/LLDPEThickness:5.4 micronsPrintinggravure printingPacking:carton ... leakage, excellent moisture barrier3) Oxygen permeability barrier, can keep a long time fresh4).Low Water Vapour Transmission Rate5) Matte or shiny ...