KeepCup's latest travel mug is made from double-wall stainless steel and provides vacuum-sealed thermal insulation for your morning tea or coffee. Designed to be taken apart for thorough cleaning, we recommend hand washing to preserve the surface finish. Hand wash only. Comfortable to drink from with the lid on or off Made from 18/8 food-grade stainless steel Electropolished, so you can enjoy the taste of your coffee BPA/BPS-free