Freshwater Fish 18 oz Steel Bottle
Show off your new Freshwater Fish Vacuum Flask at the next watershed council meeting or fill it with hot coffee as you alight for a pre-dawn fishing adventure. Impress all your friends at the Fish and Wildlife Service or take one with you on your rounds at the fish hatchery.
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|
|Material||High-grade stainless steel|
|Origin||Designed in Oregon, Built responsibly overseas|
|Cap Material||High-grade stainless steel, silicone ring|
|Care||Hand wash only|
Flat Rate $7.95
Orders $40+ ship for free
Expedited service available
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.
Returns & Exchanges
within 30 days of purchase
On USA orders over $75
Inclusive Workplace & Eco Friendly Products
Frequently Asked Questions
I bought the bird flask a while ago and loved it so much that I bought a bird and a fish flasks as gifts for Christmas. Well made and attractive!
Product is exactly as advertised, the thermos works well and the pattern is really cute!
Buy one you won’t be sorry!
Great product! See my review under gems flask.