product is made of neoprene, which not comfortable, but also keeps your hands warm and dry. They are lightweight, foldable and easy to store. for your car, office, meeting room, home, and on your way to office or school. Features - ColorAssorted Color - Material: Neoprene. - Size: About 12.5x10x0.3cm / 4.92x3.93x0.11inch. - sleeves are made of neoprene. Neoprene is a good insulation material and has a longer service life, keeping your beverage ice cold. - Our beverage bottle covers can be extended to fit various bottles, such as vacuum cups and beer cans. - Coffee sleeves can keep your drinks cool or hot, and keep your hands dry. - and , it replaces traditional disposable paper sleeve and helps . - Great for your car, office, meeting room, home, and way to office or school. Package list: 3 x can sleeve