So I have been on the lookout for a really functional lunch box, it's been a long search but I have finally found one store with a big selection. All BPA free and all really great designs. Below are the ones I like, the one of the left is a completely waste free option which I think will be great for school. Have a look at the full selection here. Biome has pretty much everything you could need for an eco friendly lifestyle, I recommend checking out the whole site, so many great things!