Starbucks Releases UV-Reactive Tumblers That Change Color in the Sun
Starbucks is putting a twist on their color changing tumblers.

Rather than pouring hot or chilled liquid to make your tumblers change shades, Starbuck’s latest color changing creation is a little more unique than that.

Introducing Starbucks’ first ever UV-activated color changing cold cups!

Venti sized tumblers that change color when you walk outside, simply step out into Mother Nature on a sunny day to watch the magic happen.

No matter what type of temperature controlled liquid is poured inside the cup, this drinkware will turn as long as your outside!

Expect this set of tumblers to show colors of lime green, dark blue, light blue, purple, and pink!

Take a stroll in the park or walk the dog with the UV-reactive tumbler that are perfect for sipping in the summer.

You can find the UV color changing cups on eBay to snag the first edition of color changing cups powered by the sun courtesy of Starbucks!
