Earth's Geology Stainless Steel Vacuum Flask

3 reviews
$ 39.95 USD

Whether you're out in the field or giving the best darn geology lecture the world has ever experienced, this Earth's Geology Vacuum Flask has got you covered. However long it takes you to get around to that next sip, your drink will still be the right temperature, ready when you are.

With a textured design for a unique tactile experience, this flask will keep your drink hot or cold until you're ready to enjoy it.

Volume 18 oz / 500 mL
Width 2.75"
Height 8.75"
Opening Wide mouth
Material High-grade stainless steel
Cap Material High-grade stainless steel, silicone ring
Care Hand wash (do not wash in dishwasher)


Fill it with your favorite mulled hot cider or cold brew, and even if you don't get around to drinking it for hours, you can expect to find your beverage ready and waiting for you at just the right temperature. The metal cap seals tightly, so it won't leak all over your bag. 

Here's how it works: the space between the inner and outer flask wall is evacuated, creating a vacuum (well, a partial vacuum anyway...). In order for heat transfer to take place from the outside world into your cold drink, or from your hot drink to the outside world, it needs nearby molecules to excite. If there aren't many molecules nearby, as is the case in a vacuum, the heat's energy can't easily be passed along, so your drink stays close to the temperature it was when you put it into the flask for a really long time. 

Simply stated, vacuums make great thermal insulation!


Flat Rate $9.95
Orders $75+ ship for free
Expedited service available


Shipping is available to most countries. See details at checkout.

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Filter Reviews:
Jessica C.
United States United States

Love it

I use this every day now. I haven't used it for anything hot yet, but I use it for water, because I can put one ice cube in there and it stays cold FOREVER. The design is beautiful and it has a texture to it that I actually really like the feel of. After seeing mine, my bf now regrets not getting one when I offered lol

United States United States

The ultimate daily go to for all your drinking needs

This is seriously worth the price, the quality and design surpasses any water bottle or drink container I have ever owned. It's breathtaking! Very comfortable wide mouth rim, easy to fill with ice. This stays exceptionally cold your ice will not even melt inside. I love the geological chart, the texturized design is so nice to grip and feel. This is a wonderful gift for your friends and family too. These are like no other water/drink canister you have ever owned. You will be blown away with it's elegance. The handle on top makes it super convenient on the go or in the field.

United States United States


This is the coolest water bottle I’ve ever seen !!!! The quality is seriously amazing and worth the $40. The different layers and clouds are textured !!!! It feels so cool and the colors are beautiful. This water bottle is great quality.

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