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Kalsten | ThermoSip Double-walled Glass Mug – Borosilicate Glass, Heat Resistant & Elegant

Kalsten | ThermoSip Double-walled Glass Mug – Borosilicate Glass, Heat Resistant & Elegant

Name: Kalsten | ThermoSip Double-walled Glass Mug – Borosilicate Glass, Heat Resistant & Elegant
Brand: Kalsten
Price: 27.99 USD
Availability: InStock

$27.99 $56.00 SAVE $28.01 (50% OFF)

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Quantity

250 ml - 2 pieces

350 ml - 2 pieces

Double-Walled & Safe – Perfect for Coffee and Tea

Experience the perfect combination of elegance, durability, and functionality with the ThermoSip Double-Walled Glass Mug. Specifically designed for coffee lovers and tea drinkers, these premium mugs offer a luxurious drinking experience and keep beverages at the ideal temperature. Perfect for home, office, or café – style, safety, and ease of use in one sleek design.

Made from high-quality borosilicate glass, these mugs are heat-resistant, lightweight, and shock-resistant for long-lasting use. The innovative double-walled construction provides excellent insulation, keeping drinks warmer or colder for longer and protecting your hands from burning. The ergonomic handle offers a comfortable grip, ensuring that every sip is safe and enjoyable.

Key Features & Benefits

Double-walled borosilicate glass – keeps drinks warm or cold without a hot exterior
Large capacity – ideal for coffee, tea, hot chocolate, or smoothies
Heat-insulating & safe – prevents burning and maintains the perfect drinking temperature
Durable & lightweight – resistant to thermal shocks and daily use
Transparent design – beautifully showcases the color and presentation of your drink
Ergonomic handle – comfortable to hold, reducing the chance of spills
Versatile use – suitable for home, office, or as a stylish gift
Easy to clean – dishwasher safe and stain-resistant

Specifications

Material: Borosilicate glass
Reusability: Reusable
Capacity: 250 ml
Care instructions: Hand wash recommended

Upgrade your drinking experience with the ThermoSip Double-Walled Glass Mug – combine style, safety, and functionality in one elegant mug.

Free standard shipping on all orders. No minimum purchase.

Ships to: United States
Processing: 1–4 business days (Mon–Fri)
Transit: 5–10 business days
Total delivery time: 6–14 business days
Order cut-off: 5:00 PM CET

You will receive a tracking number by email once your order ships. Please allow up to 48 hours for tracking to update.

See our full Shipping Policy.

You have 14 days from delivery to request a return.

Email support@open.shop with your order number to start a return.
Items must be unused, complete, and in their original packaging.
Return label: flat $9.99 USD, deducted from your refund — nothing to pay upfront.
Damaged, defective or incorrect items: we cover all return and replacement costs.
No restocking fees.
Exchanges: contact us and mention "exchange" — the new item ships once your return arrives.
Refunds are issued within 7 business days of inspection.

See our full Return Policy.

Questions about your order or our products? We're happy to help.

Open
Hooizolder 214
Drachten Friesland 9205CD
Netherlands

Email: support@open.shop

Customer Service:
Monday to Friday, 8:00 AM – 6:00 PM CET (excluding public holidays)

We reply to all messages within 24 hours on business days. Weekend messages are answered on Monday.

For quick answers, visit our FAQ page or use our Contact Form.

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