Sierra cup

Named after the American environmental organization Sierra Club, Sierra cups were historically considered the "Swiss Army knife of camping", being the primary food utensil of campers and an icon of camping food for most of the 20th century.

They typically have a fixed wire handle that is formed into a hook for attaching the cup to a belt.

Additionally, metal Sierra cups can become very hot very easily, which can burn the user when attempting to eat from it; burning one's lips on a Sierra cup while attempting to eat or drink was considered "standard practice" when they were in frequent use.

[2] However, David Brower, the first executive director of the Sierra Club, stated in his 1990 autobiography that the Sierra cup is simply a modified imitation of the Appalachian Mountain Cup, which features a very similar design and was created by the Appalachian Mountain Club.

[3] Sierra cups were originally made out of tin, but switched to stainless steel after World War II.