Aumuko Tumbler

The laser engraving removes the outer coating of the stainless steel to reveal the metal underneath. Because it is etched directly into the surface rather than printed, the design is permanent and will not peel, fade, or wash off over time.

The slider lid is designed to be spill-resistant, meaning it effectively prevents splashes and minor leaks during normal use. However, it is not 100% leak-proof, so it is best to keep the tumbler upright rather than tossing it loosely into a bag.

No. The vacuum-sealed, double-wall construction prevents heat transfer, which means the exterior of the tumbler stays dry and at room temperature, regardless of whether you are drinking hot coffee or ice-cold water.

While the stainless steel body is durable, we recommend hand washing your tumbler to preserve the integrity of the laser engraving and the vacuum seal over the long term. High-heat dishwasher cycles can degrade the insulation properties and potentially damage the finish.

Yes, the 20 oz capacity is designed with a tapered base that fits comfortably into most standard-sized vehicle cup holders, making it a convenient choice for your daily commute.