From day one the mission of Klean Kanteen® was to give people an alternative to plastic or lined aluminum bottles. We wanted to create a sustainably produced, reusable bottle that was free of BPA and other toxins. The first Klean Kanteen® was cobbled together from things we bought at the local hardware store here in Chico, California. With some fine-tuning that prototype became the 27oz Klean Kanteen® Classic, the first stainless steel water bottle designed for personal use. We chose 18/8, food-grade stainless steel instead of aluminum or plastic because the metal itself is safe and toxin-free.