This water bottle has an interior coating. The outer material of this water bottle is Copper. Copper has a long history with cultures from all over the world. Additionally, for over 2000 years, those who practice ayurvedic medicine have been drinking from copper vessels. 

Copper is a necessary component in:

• Brain development
• Nervous and immune systems
• Collagen production (connective tissue around bone structures) 

Please use caution and be aware of the water bottle’s exterior. It can tarnish if not wiped down every few days. It is recommended to hand wash this water bottle using the provided cleaning kit. Good maintenance of this bottle will unlock copper’s numerous benefits. It is 10.5” in Height, 2.9” in Diameter, and can carry 32 FL OZ.