Easily lower your carbon footprint by going back to basics with Kitchen Craft's Natural Elements Grease-proof paper sandwich bags. perfect for storing food, using for packed lunch or even taking on picnics; these bags will naturally keep your food fresh for up to 6 hours - ready for lunch time! The paper material is made from unbleached grease-proof paper, and is 100% free of BPA, PVC and phthalates; great for housing buttery or oily substances, like mayonnaise. The perfect sustainable food storage convenient for the whole family.