Kupilka is dishwasher safe, lightweight, durable, eco-friendly, and wont burn your fingers! As the name of the Suova product series suggests, this mug is stackable: get one for the whole family and pack them conveniently together. - 2 dl capacity - Made from Kareline natural fiber composite using eco-energy - 50% pine cellulose fiber, 50% thermoplastic - Easily wash on the go like a traditional wooden kuksa, or in the dishwasher at home if you prefer Kupilka products should not be placed in the microwave. The versatile Suova series gets its name from an old Finnish word that means adaptable, agreeable, and also refers to a stack or large, systematically arranged pile of hay or straw.