Hi all, Time to purchase new school items, Till now my kid used steel box with plastic lid and steel bottle with silicone rim (from munchkin's). Now it's time to upgrade... Hubby suggesting for Tupperware because on winter's kid can reheat food. I'm totally against plastic for food container. Kid is fine with cold food too. I'm thinking to buy Milton type lunch box with steel inserts. What is the best steel lunch box, and water bottle? 1) steel 2) leak proof 3) less weight 4) attractive (else kid won't eat) Ready to procure from India too.