380/510ml Stainless Steel Travel Thermal Mug – Leak-Proof Thermos

Stay Hot or Cold for Hours – Your Perfect Travel Companion

Meet your new go-to travel mug! This 380ml / 510ml Stainless Steel Vacuum Flask Thermal Mug is engineered to keep your coffee, tea, or any beverage at the perfect temperature for 6–12 hours. Whether you're commuting, hiking, at the office, or simply on the go, this sleek and portable insulated cup has you covered.

Made in Mainland China.

Why You'll Love This Thermal Mug

• Superior Vacuum Insulation: Double-wall vacuum technology locks in heat or cold for 6–12 hours, so your coffee stays hot and your iced drinks stay refreshing.
• Premium 304 Stainless Steel Interior: The food-grade 304 stainless steel inner liner is rust-resistant, non-toxic, and doesn't impart any metallic taste to your drink.
• Leak-Proof Lid: The secure, tight-sealing lid means zero spills in your bag, on your desk, or in your car — drink with confidence wherever life takes you.
• Two Size Options: Choose the compact 380ml (Height: 128mm) for shorter trips or the generous 510ml (Height: 151mm) for longer days. Both fit most standard car cup holders.
• Slim & Ergonomic Design: With an 89mm top diameter and 70mm bottom diameter, this straight-cup design sits comfortably in your hand and slides easily into bags and cup holders.
• Eco-Friendly & Portable: Say goodbye to single-use cups. This reusable thermos reduces waste and saves you money on disposable coffee cups every day.
• Lightweight Build: Weighing just 243g (380ml) or 263g (510ml), it's light enough to carry all day without a second thought.

Product Specifications

Perfect For

• ☕ Morning coffee commutes
• 🍵 Tea lovers and herbal drink enthusiasts
• 🏕️ Camping, hiking, and outdoor adventures
• 💼 Office and business use
• 🚗 Road trips and daily travel

Explore More Great Drinkware

Looking for more ways to stay hydrated and healthy on the go? Check out our 1.5L Hydrogen Water Bottle – Portable Hydrogen-Rich Sports Kettle or explore our 1000ML Portable Urinal Bottle – Unisex Travel & Camping Aid for all your travel essentials.

For guidance on choosing safe, reusable drinkware, visit the FDA's tips on using reusable bottles safely.

Frequently Asked Questions

Q: How long does this stainless steel thermal mug keep drinks hot or cold?

A: Thanks to its double-wall vacuum insulation technology, this thermal travel mug keeps beverages hot or cold for 6–12 hours, depending on the ambient temperature and how often the lid is opened.

Q: Is the 304 stainless steel inner liner safe for hot drinks?

A: Yes! The food-grade 304 stainless steel inner liner is completely safe for hot and cold beverages. It is rust-resistant, BPA-free, and will not affect the taste or quality of your drinks.

Q: Is this travel mug truly leak-proof?

A: Absolutely. The mug features a secure, tight-sealing lid designed to prevent leaks and spills, making it ideal for bags, backpacks, and commuting scenarios.

Q: What is the difference between the 380ml and 510ml sizes?

A: The 380ml version is more compact (128mm tall, 243g) — great for short trips or if you prefer a smaller cup. The 510ml version (151mm tall, 263g) holds more liquid and is ideal for longer outings or those who like a bigger drink. Both share the same 89mm top diameter and fit standard cup holders.

Q: How do I clean this vacuum flask thermal mug?

A: We recommend hand-washing with warm, soapy water. Avoid using abrasive scrubbers on the stainless steel surface. Do not put in the microwave or dishwasher, as this can damage the vacuum insulation layer.