20 oz Stainless Steel Polar Camel Pilsner w/Clear Plastic Lid. features double-wall vacuum ins ulation with a clear lid. The mug has a narrower bottom to fit most standard cup holders. It is 2X heat & cold resistant compared to a normal tumblers. This item is print-on-demand. Please allow for an additional 2-3 days for your order to ship. Print-on-demand items are non-returnable except in the case of an item defect.