Yeti Rambler Bottle Cup Cap
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Save some space by transforming your Rambler Bottles with our heat-locking . two-in-one companion — the Cup Cap. 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.