Product Details Product Details Holds 30oz of liquidDouble wall 18/8 stainless steelYour favorite teams vault logoCopper lined for maximum temperature efficiencyVacuum insulatedSweat proofBPA FreeStainless SteelImport, Domestic Officially Licensed This Michigan Wolverines Stainless Steel Tumbler is great for keeping your drink cold and showing your team spirit. This Stainless Steel Tumbler features a vault team logo.