Kitchie Premium Double Wall Stainless Steel High Vacuum Insulated Bottle 17 oz /500 ml (Blue 17 oz) Made with special hardened stainless steel double wall vacuum insulation for maximum temperature retention, hot or cold. Designed to keep liquids hot for 12 hours, and cold for 12 hours. Capacity: 17 oz or 500 ml. Leak-Proof, BPA Free and Worry-Free. Lid doubles as insulated serving cup; push and pour function allows you to pour without moving the stopper. 100% satisfaction guarantee. Lifetime warranty. Buy 2 and get FREE Super Saver Shipping!!