Insects 18 oz Steel Bottle
Whether you'll be spending your day hunting for exotic butterflies or cataloging endless specimens of dung beetles, this Insect Vacuum Flask has got you covered. Fill it with a fancy chai, your favorite cold brew, (or hey, something stronger, we're not judging) and your drink will be waiting for you at just the right temperature whenever you're ready.
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 $9.95
Orders $75+ ship for free
Expedited service available
International
Shipping is available to most countries. See details at checkout.
If you're shipping to Europe, please check out our EU website for lower shipping rates and quicker delivery times.
Frequently Asked Questions
Peer Reviews
- Reviews
- Questions
United StatesEntomologist Approved!
I absolutely LOVE this thermos and the insect art adorning it! I love it so much that I have purchased 3 other thermoses for Christmas gifts. Thinking of purchasing 3 more!!!
United StatesLove this!!!!
I love everything about this thermos. The size, the texture, the design (especially). Keeps my water cold all day (if without the lid. But it’s the designs that thrills me. I am also giving them as gifts!
United StatesBug Juice
Being in pest control, we found this product to be irresistible. Makes a terrific, unique gift. Great service and quality. Will definitely purchase from Cognitive Surplus again.
United StatesAwesome
I use it every day. Never leaks, and keeps my water nice and cold. Its super easy to clean and very high quality
United Statesgreat purchase!
love the quality and the design!