The Yeti Rambler Bottle Cup Cap (5 oz) is an innovative accessory that transforms any Rambler Bottle into a versatile, insulated flask while saving space in your pack. Designed as a heat-locking, two-in-one companion, the Cup Cap delivers dual functionality. When secured on your bottle, it serves as an insulated lid to maintain the ideal temperature of coffee, tea, whiskey, or other beverages. Simply twist it off, and it converts into a standalone, double-wall vacuum-insulated cup—perfect for sipping on the go.Compatible with all Rambler Bottles, the 5 oz Cup Cap combines Yeti’s renowned insulation technology with practical design. Whether you need a secure cap for your bottle or a separate insulated cup, this accessory ensures your drinks stay hot or cold, just the way you like them. Ideal for outdoor adventures, travel, or everyday use, the Cup Cap enhances the functionality of your Rambler Bottle while keeping your beverage experience seamless.