Simplify life with the twin pack.a unique travel combination for hot and cold beverages. Enjoy fresh water from the insulated stainless steel bottle, while sipping your favorite hot beverage from the mug. The bottle slides neatly into the mug for easy transport. Designed for the office, school, and outdoors.Featuresa one-piece item with a dual purpose, the twin pack adapts to any situation.- dual purpose - mug and tumbler in one- vacuum insulated, keeps beverage hot for12 hrs., cold 24 hrs.- easy to carry handle- tritan lid for your mug- spill proof bottle- easily detachable- fits in all standard vehicle cupholders- 30 oz / 900 ml (bottle)- 20 oz / 600 ml (mug)