A package comprising a sterilized content, characterized in that at least a part of the package wall has a moisture vapor transmission rate (MVTR) of between 100 and 1500 g/m2·day measured according to ASTM E96/E96M-05 procedure B, at 38° C. and 50% Relative Humidity.パッケージ壁の少なくとも一部が、ASTM E96/E96M-05 procedure Bに準拠し、38℃、相対湿度50%で測定された、100~1500g/m2・日の水蒸気透過率(MVTR)を有することを特徴とする滅菌済み内容物を含むパッケージ。