This design is laser etched directly into the tumbler. The artwork will not peel or scratch off. We recommend hand washing, but this product is dishwasher safe. 30 oz. Stainless Steel Polar Camel Tumblers features double-wall vacuum insulation 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 tumbler.a normal tumbler.