Stainless Steel Tumbler with Lid, Double Wall Vacuum Insulated Travel Mug for Hot and Cold Drink by Zero Degree (30oz) DOUBLE WALL  Vacuum Insulation for Incredible Temperature Retention DURABLE  Made with Easy to Clean Kitchen-Grade 18/8 Stainless Steel HOT AND COLD  Keeps Beverages COLD for 24 Hours and HOT for 6 Hours FITS MOST HOLDERS  Includes Tight Fitting Shatter-Proof and Straw-Friendly Lid HALF THE PRICE  Highest Quality: Puncture, Corrosion, and Rust Resistant