Product Details Product Details Signature triple-insulated stainless steelCeramic-coated straw and lidSleek cup holder-friendly design12 hours cold, 5 hours hotEasy-Grip Flat Sides Officially Licensed This Purdue Boilermakers Stainless Steel Tumbler is great for keeping your drink cold and showing your team spirit. This Stainless Steel Tumbler features a triple insulated stainless steel.