Genetics & DNA 18 oz Steel Bottle
Perfect for long study sessions and days spent musing on genetics and heredity, this DNA-inspired flask is sure to inspire bold new theories and molecular insights. This flask is built to go with you anywhere so you can stay hydrated or caffeinated all day long.
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.
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!
| Volume | 18 oz | 530 mL |
| Width | 2.75" |
| Height | 8.75" |
| Opening | Wide mouth |
| Material | High-grade stainless steel |
| Origin | Designed in Oregon, Built responsibly overseas |
| Cap Material | High-grade stainless steel, silicone ring |
| Care | Hand wash only |
USA
Flat Rate $7.95
Orders $40+ ship for free
Expedited service available
International
Shipping is available to most countries. See details at checkout.
If you're shipping to Europe, Asia, the Middle East, or Oceania, please check out our European website for lower shipping rates and quicker delivery times.
Frequently Asked Questions
Peer Reviews
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United StatesBest Birthday Present!
This is a super high quality product. The illustrations made my friend who has his PhD in Genetics FLIP OUT. He absolutely loved it. Thanks CS!
United StatesGood Bottle with nice theme. Loved it!
I am very passionate about biology. Hence I love cognitive plus products. They are of good quality
United StatesDNA Flask as a gift
My scientist friend was ecstatic when she opened my surprise gift! I am telling my friends about Cognitive Surplus around the holidays to see if they take the hint and buy something for me.
United StatesLove their flasks
It's a gift for my scientist friend who breaks glass things! I know he'll love it!
Genetics & DNA Stainless Steel Vacuum Flask
Everything I have bought from here is excellent quality and this is no exception.
Genetics & DNA Stainless Steel Vacuum Flask
It's awesome–way better in person than the photo's give credit for. Raised texture for a tactile experience and not just a cheap flat graphic. Really happy with this.
United StatesThis is my favorite!
I haven’t loved a flask ever like this one. The quality is beyond what I spent.
Wonderful!
Wonderful! I’m very pleased! Thank you.
Genetics & DNA Stainless Steel Vacuum Flask
Very cool for a nerd, well packaged, sturdy!