With this air tight 5.5 cup capacity lunch box from Cool Gear you can pack everything from a salad to a sandwich, all using the same container. You will have plenty of space for all your favorite foods, including sandwiches, salads, leftovers, veggies, rice, and more. It is easily expandable to nearly double its size, giving you even more storage room! You can keep it collapsed for packing sandwiches or expand it for packing salads and larger items. It has a secure-locking lid that helps seal in freshness while also preventing spills while you are on the go. It is both microwave and dishwasher safe and is 100% BPA-free.