Greenzla Clear Reusable Storage Bags. Extended freshness of food packed in these bags is guaranteed for future consumption. The bags are a safe and healthy option because they are constructed from food-safe, non-carcinogenic PEVA material. They are BPA approved and are free of chlorine, BPA and other harmful chemicals. The bags also help you save money since they are reusable compared to single-use plastic food storage. You also get to help save our planet with these bags as they are biodegradable. You also get small and large size options.