Klean Kanteen Kid's Stainless Steel Bottle with 3.0 Sport Cap 18/8 food grade stainless steel doesn't retain or impart flavors-liquids always taste fresh and clean Free of BPA, phthalates and other toxins for a safe, plastic-free bottle Slim design fits most bottle/cup holders and rounded corners make it easy to clean Silicone Sport Cap 3.0 provides smooth flow with a soft texture that's easy on little gums and teeth Can be used with the Klean Kanteen Sippy Spout or Loop Cap for additional options.