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ROOR® Glass Mugs Double Layer

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ROOR Glass Mug Double Layer 

These sleek double-walled ROOR mugs provide a fun effect that serves a practical purpose as beverages seem to float within.

The two seamless walls of borosilicate glass create an insulating layer of air, so liquids will stay piping hot and delicious – the mug remains cool to the touch with hot drinks and will not "sweat" with cold drinks.

The durable glass is great for everyday use and casual entertaining.


  • (1) ROOR® Glass Mug Double Layer (choice of size and decal)

Production/Shipping Estimate 1-2 weeks.

Note: Mugs on the outer layer have a breading micro hole on the base bottom to let moisture out.

The product image serves only as an example. The colors and arrangement of the color applications may differ due to the handcraftsmanship. We reserve the right to give our glass artists creative freedom, which is the only way to ensure the creation of the highest quality unique glass specimens.

!WARNING This product can expose you to chemicals including arsenic, which is known to the State of California to cause cancer. For more information, go to