Color Changing Sports Insulated Tumblers

Made of high quality Aluminum material. Add cold water or your favorite iced coffee drinks in these insulated tumblers, you will see the funny color changing in these tumblers. With the vacuum insulation, the stainless steel sublimation skinny tumbler bulk can keep your beverages hot and cold for hours. You can cool down at the gym or beach with a refreshing smoothie or iced drinks with the tumblers.