Dark Knight Bumbler ( Black ) metal tumbler Walk into your favorite boba

Walk into your favorite boba store and make a statement by opting for the Stainless Steel Bumbler over single-use cups

adding a touch of style to your sipping routine

Keeps drinks hot for 6 hours and cold for 10 hours

You may also choose to add on a straw cleaner to make sure your Bumbler stays extra clean

Upgrade your boba game with the Stainless Steel Bumbler and sip sustainably in style

Dark Knight Bumbler ( Black ) metal tumbler Walk into your favorite bobaIndulge in your favorite boba tea flavors with flair, all while championing sustainability with our iconic Bumbler. Elevate your boba tea experience and reduce your environmental footprint simultaneously! Step into any boba store and make a statement by opting for the Bumbler over single use cups. With its sleek design, the Bumbler complements any tea flavor and color, adding a touch of style to your sipping routine. But that's not all our versatile