This is the first truly leak-proof stainless steel lunchbox. It is a 3-in-1, multi-functional lunchbox, allowing you to transport your lunch, cook dishes in the oven and even store pre-cooked meals in a freezer. It harkens back to the vintage army or camping canteens of old, but has a modern, minimal feel that will age beautifully. The silicone valve creates a secure vacuum sealed closure, the slider divider allows you to separate the contents with ease, and the fork and holder are added for convenience. It is oven safe, leak-proof and can hold up to 34 fluid oz.