The red Solo Cup is a staple at parties and social gatherings. Proudly made in the USA out of top quality materials in FDA approved facilities. Each purchase supports American industry and factory workers. The red Solo cups are made of thick, molded polystyrene. They are known for being able to withstand drops, easily stackable, and disposable as well as inexpensive. They are crack resistant high-quality materials to avoid spills or messes. Their characteristic red color may also conveniently conceal the drinking contents.