Contigo 20 oz Drake Autoseal Stainless Steel Water Bottle - Black Double wall vacuum-insulated stainless steel water bottle keeps beverages COLD for 20 hours One-handed operation for convenient drinking during activities - just press the button to sip; relea No spout to open or cap to remove means that this insulated stainless steel water bottle makes it ea This insulated stainless steel water bottle features patented AUTOSEAL technology for 100% spill-pro Double wall stainless steel construction eliminates sweating