The next phase of Klean Kanteen's revolution is serious food transport for school, work, and play. Tare It Up with bulk ready Klean Kanteen Food Canisters that replace a lifetime of throw away plasticpaper containers and bags. Great for storing food at home or taking it with you to work or play, these food containers are handcrafted from the same durable, healthy materials you've come to expect from every product in the Klean Kanteen family. Their vacuum insulated canisters can keep things toasty warm or icy cold en route.The lid features recycled corrugated cardboard insulation. Hermetically sealed to keep out moisture and performs comparably to foam insulation, but is much more eco friendly.