Experience the magic of color changing cups with 's packs of 12oz tumblers! Just add iced beverages to the cup and watch it instantly change color. These tumblers feature lids that twist on and stay put, and a straw that's perfect for sipping water, smoothies, tea and more. The dual-action lid lets you drink from the straw or directly from the lid.
Leak-proof one touch flip lid with lock.
Guardian antimicrobial technology inhibits bacterial growth on the drink surface.
Vacuum insulated 18/8 stainless steel keeps drinks cold 14+ hours.
Drink surface stays completely covered.
All parts are BPA free.