Double-walled Ribbed Glass Mug Experience superior insulation with this expertly engineered double-walled glass mug. The innovative ribbed design enhances grip while adding visual sophistication. Borosilicate glass construction withstands temperature fluctuations, keeping beverages at optimal temperatures longer. The transparent walls showcase your favorite drinks beautifully. Ideal for coffee, tea, or cold beverages, this versatile mug combines functional design with everyday elegance. Hand-wash recommended to preserve the pristine finish.