THERMOS Vacuum Insulated Stainless Steel Sporty Direct Drink Bottle, 20-Ounce, Black THERMOS vacuum insulation technology keeps drinks hot for up to 7 hours or cold for up to 22 hours Durable stainless steel interior and exterior with a comfortable and sporty silicone grip; Smooth flow lid designed to help control the flow of liquids Integrated push button lid within the silicone band Locking switch located on the backside of lid; Flip-up carry loop 20-ounce capacity