Layer Stainless Steel tumbler is a stainless steel outer mug with plastic liner and come with stainless steel straw with silicone tip. This 16oz mug is excellent to use for your next promotion- your name will be remembered with every sip! The colorful upper design matches with matching color silicone straw comfort tip for color lover. Made of food-grade stainless steel with no harmful chemicals, BPA free, it is perfect item to use at trip, office and party.