The Thermosteel Frosty is a 590 ml vacuum-insulated tumbler without a handle, for iced drinks, smoothies, water or coffee. The double-wall vacuum construction keeps cold drinks cold and hot drinks hot much longer than a normal cup, and the outside does not sweat in the heat. A matching Thermosteel Frosty lid is sold separately on our site. We could not find the maker's full specifications for this model, so please check the packaging for hold times and care instructions. Hand wash for the longest life.