Bentgo Kids Chill keeps your child's lunch perfectly cool until it's time to eat. The unique leak-proof design includes an optional built-in ice tray that nests below the bento-style compartment tray. Simply place the ice tray in the freezer overnight and pop it into the lunchbox on days you want to keep food chilled on the go. When it's not necessary to keep food cool, just skip the ice tray. It's a sleek, all-in-one solution for sending your child to school with a fresh, healthy, portion-perfect lunch.