Klean Kanteen Classic Stainless Steel Bottle with Sport Cap, 27 Oz ( 800 ml) Our most popular size, the 27oz Kanteen&reg; Classic is perfect for your on-the-go life. Whether you&rsquo;re trying to juggle a full day of classes or work, or a trip to the dog park between your workout and happy hour, just one or two fill-ups will help you stay hydrated and happy all day. Available with the Sport Cap 3.0; featuring a soft silicone spout, 25% higher flow rate and "chirp" free hydration. Klean Kanteens are made from high quality, 18/8, food-grade stainless steel; totally free Sport Cap 3.0 features a soft silicone spout, 25% higher flow rate and "chirp" free hydration No BPA, phthalates, lead, or other toxins 18/8 food-grade stainless steel, no liner Doesn't retain or impart flavors