Thermos 12 Ounce Vacuum Insulated Stainless Steel Tea Tumbler with Infuser, Stainless Steel Thermos vacuum insulation technology locks in temperature to preserve flavor and freshness to keep beverages hot for 6 hours or cold for 10 Durable 18/8 stainless steel interior and exterior withstand the demands of everyday use Travel cover lid seals closed for carefree portability Separate infuser and splash-resistant drink lids let you brew tea right in the tumbler and enjoy on the go Contoured body is comfortable to hold and fits most automobile drink holders Thermos vacuum insulation technology locks in temperature to preserve flavor and freshness to keep beverages hot for 6 hours or cold for 10 Durable 18/8 stainless steel interior and exterior withstand the demands of everyday use Lid seals tightly closed for travel and carefree portability Separate infuser with splash-resistant lid lets you brew tea right in the tumbler and enjoy on the go Contoured body is comfortably ergonomic and fits most automobile drink holders