Abstract: Disclosed are materials comprising a thermoformed first layer having a plurality of through passages, and a gas-permeable second layer, at least a portion of which is self-adhered to the first layer. The materials are useful for packaging fresh-cut produce and other foods. It is emphasized that this abstract is provided to comply with the rules requiring an abstract, which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.