The Klean Kanteen Insulated Food Canisters feature their TK Closure internal thread design for increased thermal performance and a newly designed bowl-shaped base. The lid creates an all-stainless interior so food never comes into contact with plastic, locks in leakproof storage in just a quick quarter turn and features an easy-carry swivel loop. The vcauum insulation keeps contents hot for 5 hours and cold for 20 hours. The durable stainless steel container is also easy to clean, stackable and dishwasher safe. Great for meals, take-out, soup, ice cream or any fresh food on-the-go.