Double-walled Copper Vacuum Insulation, Your Drink Will Stay Warm for Up to 15 Hours or Cold for Up to 48 Hours. Even Carbonated Beverages Are Securely Stored in This Leak-proof Bottle. Another Highlight is the Ceramic Inner Coating, Which Ensures the Pure Taste of Your Beverages & is Very Easy to Clean. the Thermo Bottle is Made From Recycled Stainless Steel Metal & is Available in Three Finishes: Black Powder-coated, White Powder-coated, & Shiny Silver with an Anti-fingerprint Coating. Customize Your Thermo Bottle with a Silicon Ring or Sleeve, Choosing From 17 Different Colours! Your Logo Can be Applied to the Bottle Using Laser Engraving, Pad Print, or UV Print. Available in Black, White, Silver. Minimum Quantity: 50.