Welcome to Iron Flask, where you'll find an extensive line of affordable products designed for sustainable and active lifestyles, including high quality insulated coffee mugs.

Shop for one of our insulated coffee mugs today and enjoy hot drinks for hours and ditch the disposable cups! Iron Flask is the sustainable choice for you and for the planet.

Grip Coffee Mugs

Whether you’re a coffee or tea-lover, there’s nothing like a steaming drink in your hands to start your day. Find a mug that can keep up with you no matter where your day takes you — Iron Flask’s stainless steel insulated coffee mug with a lid. Our 100% leak proof travel coffee mugs are convenient, sustainable, and essential for a daily pick-me-up.

When it comes to durability, convenience, and value, we’ve crafted a mug that checks off all the boxes. Enjoy your favorite hot beverages at home or at work, on your commute, or even when exploring the outdoors — our insulated coffee cup features a dependable 100% leak proof design and a clear, flip lid.

No need to worry about luke-warm beverages or a slippery cup, either. Thanks to our stainless steel double-wall vacuum insulation technology, these insulated coffee mugs maintain your drink’s temperature for hours without creating condensation on the exterior. Hours of insulation depends on the coffee mug size you choose:



12 oz

16 oz

24 oz

Stays Cold up to

8 hours

12 hours

18 hours

Stays Hot up to

2 hours

3 hours

4 hours

If you care about style, Iron Flask has got that covered, too. We make sleek, modern mugs with an easy-grip design. That means you’ll look good and keep a secure grip on these travel coffee mugs. For a more hands-off approach, our tall 24 oz coffee mug features a cup-holder friendly design, making it easier to stow. Choose from a range of sizes to fit your needs, including 12 oz, 16 oz, and 24 oz.

Shop Iron Flask for Stainless Steel Insulated Rambler-style Grip Coffee Mugs

Shop the coffee mug with lid product line from Iron Flask for dependable and ultra durable insulated coffee mugs to get you through the longest day — whether you’re at home, at work, on the trail, or on the go.

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