Thermos 12-Ounce Stainless-Steel Tea Tumbler with Infuser, Espresso TherMax double wall vacuum insulation locks in temperature to preserve flavor and freshness durable 18/8 stainless steel interior and exterior Leak-proof travel cover seals closed for carefree portability Separate infuser and drink lids Tumbler stays cool to touch with hot liquids and is condensation free with cold