Get ready for this Coffee Sleeve to take up permanent residence in your car. Created with a brand new worldwide patent-pending double-walled insulated technology that allows your store-bought coffee to remain hot for double the standard time. The sleeve is open on top and on the bottom to fit most major brand coffee shop cups. Designed to trap the heat in the stainless steel walls, so the coffee keeps the temperature and freshly brewed taste. Avoid paper sleeves and go green with this lightweight, no cleaning necessary coffee cup holder.