600ml Outdoor Vacuum Bottle Vacuum Flask Stainless Steel Camping Cup Sport Bottle (Black, 600ML). Brand:Naturehike Size:22x6.5cm Color:Red(600ml),Black(900ml) Material:Stainless steel Holding time:20 hours Features: 1.Large mouth openings,easy to clean. 2.Made of stainless steel. 3.30% lighter,strong as ever. 4.Double wall construction,unbreakable. 5.Vacuum insulation,keeps to temp all day. .