- Reusable to-go principle: stylish mug for out and about or the office ,- Suitable for all hot and cold drinks ,- Secure screw closure with closable drinks opening protects against spills ,- Protects the environment and the budget: mug can be reused any number of times ,- Grip ring made from silicon offers additional protection against burns to the hands , ,Note for Consumers: ,Caution: when filling with hot drinks, it can also be felt heating up! ,When filling with fizzy drinks, high pressure can build up. Remember this when unscrewing the lid. ,Easy to clean under running water. ,The mug is not microwave-safe.