The Perka® 24 oz. Barbarossa Tumbler is designed to reduce waste and promote a healthier planet as well as cater to your beverage needs. Its outer shell is crafted from a unique blend of recycled coffee grounds and recycled polypropylene and the inner wall is made from post-consumer recycled 18/8 stainless steel that not only help to maintain the temperature of your drink but also ensure long lasting durability. The tumbler features a screw-top lid with dual flip closures, for drinking hot liquids through its sipper hole or cold using the included reusable straw with silicone tip. The wide mouth opening ensures easy cleaning and copper trim offers a touch of sophistication. Enjoy your favorite beverages using Perka® Barbarossa Tumbler and make positive impact on the world and be part of the change. BPA Free and FDA Compliant. A portion of all proceeds is donated to Shelter to Soldier™, a non-profit organization that rescues dogs to train as service animals for veterans in need.