Cup sleeves, also known as coffee sleeves or cup cozies, are a type of protective covering that is placed around a hot or cold beverage cup. They are typically made of paper, cardboard, or foam material and feature a corrugated texture to provide insulation and prevent the transfer of heat from the cup to the hands of the person holding it.
Cup sleeves are commonly used in coffee shops, cafes, and other food and beverage establishments to provide a more comfortable drinking experience for customers. They also serve as a marketing tool, as many businesses print their logos or branding on the sleeves to promote their brand.