Stainless Steel Interior and Bamboo Exterior.  Comes with Snap/Clip Lid to ensure no spillage, this Eco Mug is unique to us!  Printed with UV-Ink for durability, Hand Wash Only - Bamboo doesn't do well in a dishwasher :)
 
Holds 16 oz - Measures 6.5" In Height (Inc Lid) & Top of Lid is 3" Wide - Comes in Plain White Box.