Starbucks Japan - Happy Spring Days - Mystery Color Changing Reusable Cold Cup 710ml + Blind Bag Bearista Straw Cap

Straw Cap Bearista and Reusable Cup Set. This set includes a reusable cup that changes color when you pour a cold drink into it, and a straw cap with an adorable pastel-colored Bearista design. You'll have fun pouring a drink into the reusable cup to see what color it changes to. The Bearista cap comes in four colors. Open the silver packaging to find out which color you'll get. This product was inspired by the design of a product sold at Starbucks in Korea.