Treat yourself to these stylish and functional travel mugs! These mugs are made of stainless steel with a powder finished coating that is durable and easy to clean. They have the double wall vacuum insulated technology that keeps your drinks hot for up to 4 hours and cold for up to 6 hours. A unique design with a cork bottom provides a non-slip grip and a touch of elegance. Perfect for enjoying a hot tea or a cold smoothie. Imprint drinkware only can be handwash. Rush 3 days available with rush charge upon request. BPA FREE, FDA certified