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WarmCold Insulation Mug – Stainless Steel Travel Mug 500 ml with Sliding Lid | Kalsten

WarmCold Insulation Mug – Stainless Steel Travel Mug 500 ml with Sliding Lid | Kalsten

WarmCold Insulation Mug – Stainless Steel Travel Mug 500 ml with Sliding Lid | Kalsten

WarmCold Insulation Mug – Stainless Steel Travel Mug 500 ml with Sliding Lid | Kalsten

WarmCold Insulation Mug – Stainless Steel Travel Mug 500 ml with Sliding Lid | Kalsten

WarmCold Insulation Mug – Stainless Steel Travel Mug 500 ml with Sliding Lid | Kalsten

WarmCold Insulation Mug – Stainless Steel Travel Mug 500 ml with Sliding Lid | Kalsten

WarmCold Insulation Mug – Stainless Steel Travel Mug 500 ml with Sliding Lid | Kalsten

WarmCold Insulation Mug – Stainless Steel Travel Mug 500 ml with Sliding Lid | Kalsten

WarmCold Insulation Mug – Stainless Steel Travel Mug 500 ml with Sliding Lid | Kalsten

WarmCold Insulation Mug – Stainless Steel Travel Mug 500 ml with Sliding Lid | Kalsten

WarmCold Insulation Mug – Stainless Steel Travel Mug 500 ml with Sliding Lid | Kalsten

WarmCold Insulation Mug – Stainless Steel Travel Mug 500 ml with Sliding Lid | Kalsten

WarmCold Insulation Mug – Stainless Steel Travel Mug 500 ml with Sliding Lid | Kalsten

WarmCold Insulation Mug – Stainless Steel Travel Mug 500 ml with Sliding Lid | Kalsten

WarmCold Insulation Mug – Stainless Steel Travel Mug 500 ml with Sliding Lid | Kalsten

WarmCold Insulation Mug – Stainless Steel Travel Mug 500 ml with Sliding Lid | Kalsten

WarmCold Insulation Mug – Stainless Steel Travel Mug 500 ml with Sliding Lid | Kalsten

WarmCold Insulation Mug – Stainless Steel Travel Mug 500 ml with Sliding Lid | Kalsten

WarmCold Insulation Mug – Stainless Steel Travel Mug 500 ml with Sliding Lid | Kalsten

WarmCold Insulation Mug – Stainless Steel Travel Mug 500 ml with Sliding Lid | Kalsten

WarmCold Insulation Mug – Stainless Steel Travel Mug 500 ml with Sliding Lid | Kalsten

WarmCold Insulation Mug – Stainless Steel Travel Mug 500 ml with Sliding Lid | Kalsten

WarmCold Insulation Mug – Stainless Steel Travel Mug 500 ml with Sliding Lid | Kalsten

WarmCold Insulation Mug – Stainless Steel Travel Mug 500 ml with Sliding Lid | Kalsten

WarmCold Insulation Mug – Stainless Steel Travel Mug 500 ml with Sliding Lid | Kalsten

WarmCold Insulation Mug – Stainless Steel Travel Mug 500 ml with Sliding Lid | Kalsten

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WarmKoud Insulated Mug – Stainless Steel Travel Cup 500 ml with Slide Lid

Enjoy warm or cold drinks on the go with the WarmKoud Insulated Mug. This robust and stylish travel mug made of food-safe stainless steel offers excellent insulation, a practical leak-proof lid, and fits effortlessly in most cup holders – ideal for daily use and adventure.

Benefits of the WarmKoud Insulated Mug:

Durable & safe: Made of BPA-free, food-safe stainless steel – rust-resistant, unbreakable, and without metallic taste.
Thermal insulation: Double-layer design keeps drinks hot or cold for up to 6 hours, without condensation on the outside.
User-friendly: With a sturdy slide lid, wide opening for ice cubes, and easy to clean by hand.

Product Specifications:

Material: Premium food-safe stainless steel, BPA-free
Capacity: 500 ml
Insulation duration: Up to 6 hours hot/cold
Lid: Slide lid with tight seal
Care: Not microwave safe, hand wash recommended

Whether you're on the go, at the office, or in nature – with the WarmKoud Insulated Mug, your favorite drink is always within reach, at the perfect temperature and style.

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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