Insulated Stainless Steel Water Bottle Double Walled Vacuum Sealed, 500ml/17ounce STAINLESS STEEL BOTTLE: The bottle is made from food grade 18/8 stainless steel. The cap is free of BPA and Phthalates. VACUUM INSULATED FOR COLD OR HOT DRINKS: High-quality vacuum insulated water bottle from GreatMetal. Keep your cold drinks perfectly chilled for up to 12 hours in this rugged bottle. HIGH QUALITY: High quality construction that should give you years of use. Easy to clean, fill, and drink from. Even filled with ice, the bottle will not sweat. COMPACT & EASY TO CARRY: 17 ounce (500 ml) capacity is perfect for staying hydrated while behind a desk at work, at school or spending time outdoors.