Klean kanteen vacuum insulated stainless steel food canister description new addition to the klean kanteen family these cute handy round airtight stainless steel vacuum insulated containers have a lid that screws on to make the container airtight they come in two sizes 236 ml 8 oz and 473 ml 16 oz great for packing messy warm comfort foods to go or for loading up with take out and checking out easily with the bulk ready tare tag the lid features a silicone seal to prevent leaks