PELICAN BRAND THERMAL TUMBLER. Double-wall vacuum insulation. 18/8 BPA-free stainless steel. Copper plated inner wall. Spill-Resistant Lid. Extreme cold & heat retention. Guaranteed for life. Made of professional grade stainless steel. Powder coat finish does not sweat. Has extreme cold and heat retention. Spill resistant. BPA free (bisphenol A)