18/8 Stainless Steel. Our Commitment to You: At Klean Kanteen we are committed to the health of you, our customers, community and planet, we use our family and employee-owned business as a force for good in everything we do while working hard to build durable, versatile products designed to last a lifetime. Family & employee-owned. Easy Klean. Removeable spout. Lightweight. Klean Coat. Care and use on the inside. Food safe. FSC: Mix - Paper. Climate Neutral Certified. Certified B Corporation. 1% For the planet member.