This travel tumbler is made with stainless steel both inside and out. It is BPA-free and has a double-wall vacuum insulation, allowing your drinks to stay hot or cold for hours (up to 18 hours for cold drinks and up to 8 hours for hot drinks). The spill-resistant slide lid, which has a rubber gasket, ensures no leaks or spills. The tumbler is sweat-resistant, and it comes fully assembled. We recommend hand washing for best results.
