The Majesty Recycled Stainless Steel Straw Bottle - 590 ml is designed with double-wall vacuum insulation, keeping drinks hot for up to 6 hours and cold for up to 24 hours. Made from recycled stainless steel (304), the bottle features a sleek powder coating finish and a leakproof screw-on lid. It has a dual-opening design, the top opens for easy sipping, with a wider opening just below, for easy filling and cleaning. With a capacity of 590 ml , it’s perfect for both hot and cold beverages. This bottle is BPA-free and not suitable for dishwashers or microwaves.