Material: The interior is made of food-grade 304 stainless steel, and the exterior is made of bamboo.
Features: It is a double-walled vacuum flask designed to keep beverages hot or cold for several hours. It often comes with a leak-proof lid and a tea infuser.
Capacity: Common capacities are around 350ml to 480ml.
Use: The mug is designed for travel, office use, or outdoor activities.