The Metal Mortar vacuum bottle has a unique, masculine design of mortar. The silver and black color exudes a strong and sophisticated air. Despite a large capacity, it has a slim body and is appealing to both men and women. Design details are also notable. The flat top makes it easy to put on the table to use as a cup. The handle is firmly attached to the body and made in silicon, which is soft to grab and stays warm during a cold winter day. Both interior and exterior layers are made of high-quality STS304 for excellent durability and hygiene. The interior body is coated with bronze to capture radiating heat to ensure the best thermal performance.