THIS TUMBLER KEEPS BEVERAGES HOT FOR UP TO 5 HOURS AND COLD FOR UP TO 18 HOURS. FITS MOST VEHICLE CUP HOLDERS AND THE VERSATILE STYLE WORKS WITH ALL OF YOUR DAILY ACTIVITIES. DOUBLE WALL STAINLESS STEEL IS COOL TO THE TOUCH WITH HOT BEVERAGES AND SWEAT PROOF WITH COLD BEVERAGES. SLIDE LOCK LID IS EASY TO OPEN AND CLOSE. FITS MOST CUP HOLDERS.