The invention provides a laminated body in which two stretched substrate films containing polypropylene resin as a raw material and one heat sealable layer containing a resin are laminated with an adhesive, wherein at least one of the substrate films has a coating layer containing a polyvinyl alcohol copolymer and a layered inorganic compound or an inorganic thin layer on one side of the substrate film, the one heat sealable layer is composed of an olefin resin containing a polypropylene or polyethylene resin as a main constituent component, and the laminated body has a (a) piercing strength of 15 N or more, (b) oxygen permeability of 20 ml/m2·d·MPa or less and water vapor permeability of 2.0 g/m2·d or less, (c) seal strength of 15 N/15 mm or more where the heat sealable layer is sealed at one end and another end, and (d) heat shrinkage rate of 1.8% or less