The tabby travel mug is almost double the size of the average mug. It holds 20oz, or 600ml, as opposed to the more common 12oz size. It has the traditional mug shape including a handle so you never have to worry about your tea or coffee being too hot to carry along. It can be used as a regular mug at home or just pop on the lid and your new favorite mug is ready to go with you. 4 different designs are available.