Product Details Product Details Holds 20oz of liquidDouble wall 18/8 stainless steelCopper lined for maximum temperature efficiencyFood grade – no metallic tasteVacuum insulatedSweat proofBPA FreeImport, Domestic Show your team pride and keep your drink chilled with this Philadelphia Stainless Steel Tumbler. It features a stainless steel premium vacuum insulation with a sweat-free outside powder coating.