Made of 18/10 Stainless Steel. Capacity: 0.5 liters. Its leak-proof sealing technology with hermetic screw and its double wall with intermediate vacuum allow the temperature of both cold and hot liquids to be preserved for a long period of time (approximately 12 hours). Elegant colors and unique designs that fit your style perfectly. BPA free This reusable bottle is perfect for replacing disposable plastic bottles, also helping to improve the environment.