BlinkOne Double Walled Stainless Steel Vacuum Insulated Water Bottle; Leakproof and Shakeproof (18 Oz) COMPACT AND ELEGANT: Stylist vacuum flask constructed with precision double walled insulated technology with leakproof and shakeproof advantages. HOT AND COLD RESISTANCE: 304 stainless steel thermo bottle is designed to keep liquids hot for up to 12 hours and cold for up to 6 hours. PERFECT SIZE: Product dimension: 9.05 inches(L)*2.75 inches(H)*2.75 inches(W) and weights only 10.72 oz; Capacity 18oz. Recommended handwash ONLY. ALL PURPOSE BOTTLE: Suitable for backpack, travel, office, indoor and outdoor. An ideal gift for your loved ones and for those who enjoy style and simplicity. LIFETIME WARRANTY: BO998TWB insulated vacuum bottle is protected by BlinkOne's lifetime warranty against any defect in materials and workmanship with proof of purchase directly from BlinkOne on Amazon only.