Borealis Recycled Stainless Steel Straw Tumbler - 16 oz. is perfect for enjoying hot and cold drinks on the go. Featuring double-wall vacuum insulation, it keeps hot beverages warm for up to 8 hours and cold drinks chilled for up to 10 hours. Made from recycled stainless steel, the tumbler has a sleek matte metallic finish and includes a spillproof press-on lid and matching color straw for easy sipping. Ideal for daily use, it is both durable and stylish. Not suitable for dishwashers or microwaves.