Durable, microwavable mineral filled polypropylene (MFPP) base made with 50% less plastic. Featuring soak through resistance to grease and moisture. These containers stack easily and are a great option for your to-go and delivery applications. ZipSeal™ closure for increased leak resistance. Perfect for hot and cold case applications (37.5°F to 250°F). Clear polypropylene microwaveable lid.