Making the world better one bottle at a time. Klean Kanteen helps people kick the single-use habit one product at a time. Klean products are reusable, BPA free solutions to everything from plastic water bottles to single-use cups. These Klean Design products are designed to last a life. Every time you make a Klean purchase, 1% of the sale is invested into organisations working hard to make the world a more resilient and sustainable place through the 1% for the planet initiative.