Set of Two Double Wall Drinking Glasses
The ISTANBUL double-walled drinking glasses from GROSCHEÂ have a capacity of 280 ml / 9.5 fl. oz. They have a straight line on the outside and a curvy shape on the inside.
That makes the ISTANBUL glasses a real eye-catcher. They display any drink beautifully. Fill them with coffee, tea or your favourite juice or liquors, the choice is yours.

The Perfect Cocktail Glasses
The ISTANBUL makes an excellent cocktail or whisky glass! This set of glassware optimizes scent delivery with its aromatic focus that is created with its unique shape. It is a modern shape whisky glass set that features a double-walled design to keep the whisky at the perfect temperature that you enjoy.
When you add some ice, you will find that the ice will melt very slowly keeping your whisky flavor intact. These double wall glasses are suited for all types of liquor with their unique shape. The ergonomics make these glasses comfortable to hold.
The double walled glass prevents the warmth and heat from your hands to be transferred to the liquor as well giving you perfect taste and aroma delivery.
High-Quality Double Wall Glass Cups
The ISTANBUL glass cup set features a double wall design to keep liquids hot or cold longer. Every glass is made from heatproof borosilicate glass which is lightweight yet strong. This is a thermal glass that can withstand high temperatures and is naturally BPA-free and lead-free.
Each glass is mouth blown by artisan glassmakers and made by hand making each glass unique. This glassware set is not machine made. And the best part is that this tumbler set is dishwasher safe.
If you’re looking for double wall espresso cups or coffee mugs, then check out our TURIN, CYPRUS and FRESNO glassware.

GROSCHE Safe Water Project
Every ISTANBUL purchase gives back to those in need by funding the GROSCHE Safe Water Project!
For every product sold, GROSCHE funds 50+ days of safe drinking water to those in need. GROSCHE is a Certified B Corp, Carbon Neutral, Woman-Owned, Living Wage social enterprise on a mission to change the world one cup at a time.
The company’s Safe Water Project gives people in need biosand filters. The GROSCHE team employs and teaches local community members how to build and maintain these filters using local materials. The filters last up to 30 years and purify water using sand, gravel and warm climate. They don’t need any electricity, chemicals or filter cartridges.
Together, we are making a difference.
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