Go Green Lunch Box Set 5 Compartment Leak-Proof Lunch Box Insulated Carrying Bag Beverage Bottle Gel Freezer Pack (Tweety)

We have four kids and these are the only lunch boxes I buy. They are pricey but they last and they hold enough food to take them from kindergarten to grade 12. They are roomy enough for adult lunches, no problem. Full sized sandwich fits if you cut it diagonally and tilt it a bit putting it in. Opening/closing will require practice for little ones, but my 3 year old could do hers by herself after a couple of weeks. I regularly put goopy stuff like yogurt and dips in, with no leakage. I wouldn't chance it with soup, but who knows. Lunch box is good, not that you have a choice as it's the only one that will fit this huge box!