Yeti Rambler Bottle Cup Cap 5 Oz. Not only is it compatible with every Rambler Bottle but it also offers twice the functionality. As an insulated cap it helps keep your coffee tea or even whiskey at the perfect temperature. And when you twist it off you've got a double-wall vacuum insulated cup. Please note: Do not use the Rambler Bottle Cup Cap with carbonated beverages or for storage of food or perishables. Specifications for Yeti Rambler Bottle Cup Cap: Manufacturer: Yeti Color: Black Size: One Size Volume: 5 oz Features of Yeti Rambler Bottle Cup Cap Twist cap Space efficient Dishwasher safe Package Contents: Yeti Rambler Bottle Cup Cap Yeti 21070100006: Rambler Bottle Cup Cap 5 Oz