The 40 oz. Peak Intrepid Tumbler is made with a stainless steel outer and inner, it features double-wall construction for superior insulation, keeping your drinks cold for up to 24 hours and hot for up to 8 hours. The powder-coated finish provides added durability, while the screw-on, spill-resistant flip-top lid ensures convenience on the go. With an easy carry handle and vacuum insulation, this tumbler is both practical and reliable. It meets FDA requirements, is BPA free, and hand washing is recommended for lasting quality.