20 oz. Tumbler Glass Insert the-coffee-cup Stainless outside - Glass inside

Stainless outside - Glass inside

The glass insert is dishwasher safe and comes with a slide close lid

Glass on the inside - double walled stainless steel on the outside

Holds 14 oz

Black with Groom engraved on powder coated stainless steel

20 oz. Tumbler Glass Insert the-coffee-cup Stainless outside - Glass insideBACK IN STOCK ON JULY 1ST The Only Tumbler That Doesnt Ruin Your Coffee! Glass lined = no metallic taste. Keeps drinks hot or cold for hours. Leak proof, dishwasher safe. Our insert fits most 20 ounce tumblers and holds 16 ounces of liquid (14 ounces with the lid on). Upgrade your tumbler and enjoy the purity of your beverage. Dishwasher safe and with a slide close lid, you can use it for hot or cold beverages. Please reach out to us at