Classic cheese packaging 2.0 is the same material our Cheese Storage Bags are made of. Based on the same concept of our two-ply, this material is composed of brown paper sprayed with a polyethylene coating. One-Ply is porous enough to allow cheese to breathe while retaining the proper humidity level to ensure optimal storage conditions. Coating One-Ply with plastic rather than laminating with a separate sheet allows us to offer this material in sheets, rolls, and bags. **Due to our adherence to stringent food safety standards, we cannot accept returns of opened cases. We recommend ordering samples of new materials before purchasing a full case, and confirming that you received the correct product before opening the case. Why We Love it Available in sheets, rolls, and bags, and we can custom print all formats.