Introducing the Double Wall Technology tumbler: the perfect birthday gift for women! With its double wall insulation, you won’t burn your hands with hot drinks or have moisture building on the outside with cold drinks. It keeps hot drinks hot for 3 hours and cold drinks cold for 9 hours. The tumbler also comes with a straw and cleaning brush for easy hygiene maintenance. It fits in car cupholders and holds 20oz of your favorite beverage. Join our American family-owned business and support a company that understands your needs.