To provide a packaging body constituted by a plastic container and an outer covering body which can prevent a density change depending on water constituent transpiration of contents of injection agents etc., and can prevent generation of dew condensation in a secondary package in keeping of refrigeration condition or temporary reduction in temperature.SOLUTION: A packaging body which has a combination of a plastic container 10 having airtightness to store water or water solution as contents 11, and an outer covering body 20 storing the plastic container, and in which the plastic container and the outer covering body do not have a hygroscopic property, and when water vapor transmittance WVTRof a storage part 12 is 0.01-5 g/m24h, and water vapor transmittance WVTRof a film part 22 is 0.1-100 g/m24h, relation of WVTR-WVTR>；0 is satisfied, and volume of air 21 is within three times of volume of the contents 11, and the inside of the outer covering body is normal pressure, and which has a characteristic that does not generate dew condensation even if the packaging body is quietly placed temporarily in a usage reserved at 0-10°C or a temperature environment of 0-10°C.SELECTED DRAWING: Figure 1【課題】注射剤等の内容物の水分蒸散による濃度変化を防止し、かつ冷蔵条件の保管または一時的な温度低下の際にも、二次包装内における結露の発生を防止することが可能なプラスチック容器および外装体からなる包装体を提供する。【解決手段】内容物１１として水または水溶液を収容するための気密性を有するプラスチック容器１０と、プラスチック容器を収容した外装体２０との組み合わせからなり、プラスチック容器および外装体は吸湿性を有さず、収容部１２の水蒸気透過度ＷＶＴＲＩが０．０１～５ｇ／ｍ２・２４ｈ、フィルム部２２の水蒸気透過度ＷＶＴＲＯが０．１～１００ｇ／ｍ２・２４ｈ、ＷＶＴＲＯ－ＷＶＴＲＩ＞０の関係を満足し、空気２１の体積は内容物１１の体積の３倍以内であり、外装体の内部は常圧であり、０～１０℃で保存される用途か、または０～１０℃の温度環境に一時的に静置しても結露を生じない特性を有する。【選択図】図１
