We have carried the Klean Kanteen for years not only because it is an excellent product, but because they share in our commitment to promoting sustainability. As a member of 1% for the Planet and as a Certified B Corporation, we are proud to use Klean Kanteen for our custom tumbler.

Holds 12 ounces of hot or cold coffee, and keeps it hot for an almost preposterous amount of time (10+ hours!), especially if you pre-heat.