Placeholder Retro Birds 18 oz Stainless Steel Water Bottle / Travel Mug | Cognitive Surplus

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Retro Birds 18 oz Steel Bottle

$ 39.95
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Whether it’s a jungle hike to find an elusive flock of tropical birds or a sunrise bird banding extravaganza, armed with this fun retro-inspired bird flask you’ll be fully caffeinated or hydrated and ready for anything.

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.


Infuser Basket Compatible
BPA-free
Hand-wash only
Carbon Neutral Shipping & Operations
Compostable Packaging

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
Features Infuser basket compatible
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.

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Infuser Basket for Stainless Steel Bottles

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