Our CareKraft Foil Food and Pharmaceutical Stand Up Storage Barrier Mylar Bags are excellent for storage of food, pharmaceuticals, herbs, liquids and more. The transmission rates of oxygen and water vapor are two essential material specification impacting the shelf life of food packaging. CareKraft foil provides and excellent barrier in a natural CareKraft brown pouch that can be customized. The look of paper with the benefits of the barrier of BPA and toxin-free, food grade plastic.