Square Borosilicate Glass Cup with Flip Lid & Glass Straw | Heat-Resistant Transparent Tumbler for Iced Coffee, Tea, Juice & Milk | Home & Bar Drinkware

The Only Glass You’ll Ever Want to Drink From 

There’s something deeply satisfying about watching layers of creamy iced coffee settle through the crystal-clear walls of a beautifully shaped glass. Our Square Borosilicate Glass Cup delivers exactly that experience — with a sleek, architectural square silhouette that stands out on any countertop, desk, or bar cart.

Built from premium high borosilicate glass, it handles hot teas just as effortlessly as it does chilled cold brews. The included flip-top leakproof lid and glass straw mean you can sip safely at your desk, commute without spills, or lounge at home in style — without ever compromising on aesthetics.

 Key Features

• Heat-Resistant Borosilicate Glass: Engineered to withstand sudden temperature changes — pour a hot espresso or fill it with ice-cold juice without worry. BPA-free and food-safe for complete peace of mind.
• Unique Square Design: The flat-sided square shape gives this glass a modern, architectural look that’s unlike ordinary round tumblers — ideal for coffee lovers who care about aesthetics as much as function.
• Flip-Top Leakproof Lid + Glass Straw: The secure flip lid keeps drinks fresh, prevents spills, and accommodates the included glass straw — making this the perfect desk-to-commute companion.

 Works Beautifully With

• Iced coffee, cold brew & espresso tonic
• Hot tea, green tea & herbal infusions
• Fresh juice, lemonade & fruit water
• Bubble tea, matcha latte & smoothies
• Milk, oat milk & protein shakes

Perfect Gift For

• Coffee enthusiasts and home baristas
• Remote workers and students who live at their desks
• Aesthetic kitchen and drinkware collectors
• Friends, couples or family as a matching pair
• Home bar and entertaining setups

Specifications

• Material: High borosilicate glass (BPA-free, food-safe)
• Shape: Square / rectangular silhouette
• Colour: Transparent clear glass
• Lid Type: Flip-top leakproof lid (clear with grey silicone seal)
• Straw: Clear borosilicate glass straw (straight)
• Heat Resistance: Suitable for both hot and cold beverages
• Ideal For: Home, office, bar & travel use

Package Includes

• 1 × Square Borosilicate Glass Cup
• 1 × Flip-Top Leakproof Lid
• 1 × Clear Glass Straw

 How to Use & Care

1. Rinse the glass, lid, and straw with warm water before first use.
2. Fill the glass with your preferred hot or cold beverage.
3. Press the flip-top lid firmly onto the rim until it clicks securely into place.
4. Insert the glass straw through the lid opening and enjoy your drink.
5. To close the straw hole, flip the lid cover shut to prevent spills when carrying.
6. After use, hand wash with mild dish soap — avoid abrasive scrubbers to maintain glass clarity.
7. Use a straw brush (sold separately) to clean the inside of the glass straw thoroughly.
8. Air dry upside down before storing.

Note: Borosilicate glass is highly durable but not unbreakable. Handle with care and avoid dropping. Not recommended for use in microwave with lid on. Check base for dishwasher safety.