Klean Kanteen Stainless Steel Bottle Bundle with 2 Caps (Sport Cap & Stainless Unibody Bamboo Cap) Bundle of 2 Items: 18 Ounce Klean Kanteen Classic Stainless Steel Bottle with Sports Cap & Stainless Unibody Bamboo Cap Made of 18/8 food grade stainless steel, no liner needed No BPA, phthalates, lead or other toxins Doesn't retain or impart flavors for a clean, fresh drink every time Rounded corners are easy to clean with no hard angles where dirt, germs or other bacteria can stick