Leak-proof. Sweat-proof. Drop-proof. Adventure-proof. The robust construction and vacuum insulation of this 1-litre thermos flask can handle anything - it keeps hot drinks hot and cold drinks cold for a whole day. It's slim enough to hold with one hand and even has a twist and pour cap for easy pouring. The insulated lid can also be used as a drinking cup. This vacuum flask is easy to clean. All parts of this stainless steel flask are dishwasher safe.