355 ml. Stainless steel. Food safe. Ice friendly. Easy clean. Carry loop. Choose Stainless: won't shatter or rust; doesn't impart flavors. In Business for Good: Klean Kanteen delivers simple solutions that benefit the people and places where we live, love, and play, across the globe. Strong-as-Steel Guarantee: Our products are guaranteed to withstand life's thrills and spills. BPA and toxin-free.