Asobu Big Boss High Performance Double Walled Insulated Stainless Steel Travel Coffee Mug - Large 30 Ounce Coffee Cup Why Asobu? At Asobu we take innovative to the next level. We have looked around at a the flaws in other coffee cups and created for you the perfect Coffee mug With its Insulated stainless steel interior this is a Coffee tumbler that will keep your preferred Beverage Hot up to 6 hours and cold up to 24 Hours. Lightweight, sturdy and ultra-durable- makes this the perfect mug for travel or for on your desk at the office At 30oz this sleek classy looking cup will fit into most standard cup holder but as enough coffee to keep you going through those rough and tough days Available in 4 colors, this 100% stainless interior coffee mug is the perfect gift for Mom, Dad, commuters, teachers or any coffee lover