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 tumblers. Made from 18/8 gauge stainless steel (18% chromium/8% nickel) – also known as Type 304 Food Grade.
Etching is permanent, but it is not recommended for dishwasher use. Etching is on one side only.
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