Abstract: Packaging for a medical article to be gas-sterilized includes a plastic film which includes at least one layer and which is structured as a dome to house the medical article in use; and a plastic-treated paper web which is comprised of a paper web, which forms a pack base, and which is sealed to the plastic film in a peelable manner in use, wherein the paper web has a basis weight ranging between 55 and 250 g/m.sup.2 and has been treated with a plastic so that the plastic-treated paper web has an average gas-permeability of at least 0.50 .mu.m/Pa.s, and wherein the plastic is present in a weight ranging from 3 to 20 g/m.sup.2 so that the packaging after sealing in use may be opened without contaminating the medical article contained therein with fibers from the paper web.