We provide an assortment of pouches, mailers and tubing constructed from recyclable elements and compostable plastics for instance monolayer PLA, clear cellulose and PE+D2W. The bags seem the exact same. Unless that you are inside the bag company You can't inform the difference. Having said that, printing is different. https://www.linpack.com/news/step-into-the-future-with-advanced-vacuum-packaging-machine-technology