Today's lunch went into the two side containers of the Poka Poka bento set. The containers are sturdy, light, and the lids are air & watertight. I put plum tomatoes and shredded cheese into one container, and lined the other with plastic wrap before pouring about 2 tbsp of taco sauce in (mostly for fear of staining). I kept my lunch bag upright for the most part, so it may be that more than the container that kept everything neat and dry. A gordita tortilla went into a plastic ziploc, along with a banana on the side. Then, come lunchtime, I made a meximelt in the microwave. Voila!