Stanley - Classic One Handed 0.35L Vacum Mug is a 354ml drinking flask, designed to keep your liquids at the same temperature you put them in, keeping your warm drinks hot and your cold drinks cool. The flash is built by Stanley, who since 1913 have been making high quality drinking flasks and mugs used for a wide variety of purposes. The flask is constructed from Stainless Steel, with a Polymer Dishwasher Proof Lid. The lid of the flask is designed to be operated one handed, allowing you to drink whilst on the move. This flask is perfect for a huge range of activities, from day long Skirmishes, to Hiking, Dog walking, Camping, Fishing, or any Outdoor event which calls for a warm drink at lunch time!