Our new favorite passed every test and looked good doing it. Its clear, lightweight Tritan plastic material stayed as clear and stain-free as glass, and its audibly snug seal didn't leak, even when we turned the container upside down and shook it hard. It held a generous amount of chili, and its low profile helped foods chill or heat up more evenly than did deeper containers. One quibble: While we like that the gasket is attached so we don't have to fuss with removing it, you do need to clean carefully under its open side, as some testers detected very slight fishy odors. It's also sold in sets, in varying sizes.