Joie Bento Box - Insulated Lunch Box for Adults & Kids, Leak-Proof Food Storage Container with Compartments | Perfect for Office, School, Picnics & Travel

Love this new larger size. We have several of various sizes, but really like that this size can fit a full lunch with sides, but is smooth and flat enough to slide into a backpack or briefcase. The lid stays on, the dividers between compartments meet and don't allow much movement to other compartments. (I'm not sure if it is "airtight" between compartments but everything stays put nicely.) Have not had any issues with leaking or spilling and it has been washed in top rack of dishwasher many times and still looks new. Great product.