Made of eco-friendly Kareline natural fibre composite material, this cup is designed on the classic Scandinavian drinking vessel that so many Norse men and women used to drink their beverages around the fire in the evening. It won't burn your fingers and is light, durable and long lasting. Because of the nature of the material each piece is uniquely patterned. This cup is dishwasher safe and can bear temperatures from -30C to 100C.