Stelton vacuum Jug in Stainless Steel, .5 liter. This thermos is a staple in the Stelton line. This stunning vacuum Jug is made of a Matte finished Stainless Steel, with a glass liner. The thermos is an international favorite, keeping hot drinks hot and cold drinks cold. No modern office is complete with out it. Originally designed in 1977 by Erik Magnussen.