The correct orthography for the insulated sleeve used to keep beverages cold is “koozie.” This spelling has become widely accepted, although variations and misspellings are common. As a noun, it refers specifically to this type of insulated holder, often constructed from foam or neoprene. For example, one might say, “The koozie kept the soda from getting warm too quickly.”
The widespread usage of the term underscores its practical benefits in maintaining the temperature of canned or bottled drinks, particularly in outdoor settings. This utility has led to its adoption as a promotional item and a standard accessory at events. The term’s familiarity also reflects its historical evolution from a regional term to a nationally recognized descriptor.
