GHP Double Wall Vacuum Insulated Stainless Steel Travel Tumbler, 30 oz, Copper Stainless Steel double wall construction prevents condensation and insulates your beverage Vacuum insulation keeps beverages hot for up to 12 hours and cold for up to 24 hours Fits comfortably in a cup holder and in your hand Great for fresh water, sweet tea, large coffee and mixed drinks and perfect for on the go road trips, tailgating, beach day and camping. BPA free, Non-toxic, Non-leaching, Hand wash in warm soapy water, Not microwave-safe, Not Freezer-safe