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Heartbeat 18 oz Steel Bottle

$ 39.95
Item is in stock Only 0 left in stock Item is out of stock Item is unavailable

Study your cardiac rhythms while keeping hydrated! Nicer looking than an EKG pocket guide, this Heartbeat Flask is both functional and aesthetic. Nicer looking than an EKG pocket guide, this heartbeat travel bottle is both functional and aesthetic. Fill it with ice cold water and take it to the gym for your cardio workout, or top it off with coffee for a long night shift in the cardiac ward.

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.

Carbon Neutral Shipping & Operations
Composable 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 | 500 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

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


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within 30 days of purchase

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On USA orders over $75

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Customer Reviews
4.9 Based on 10 Reviews
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Filter Reviews:
Vanessa N.
United States United States

Good for your heart

I love it I just wish it was larger. 40oz would be better! All of my co workers love the flask.

Brett B.
United States United States

Husband of the year

I bought this for my wife. She is a nurse on the cardiac floor. Yes, she saves lives everyday but she became a hero when she showed up on the floor with this dope flask! In turn, that made me a hero for buying it for her. Thank you for making me look good!!

Jennifer C.
United States United States

Perfect gift

Keeps iced drinks cold and hot drinks hot. Perfect for a healthcare worker who doesn't have time to get to a cup of coffee right away.

Robert R.
United States United States

Beautiful Flask, Wife Approved

My wife loves this flask, stylish and well built. She makes her ICU coworkers jealous.

Takashi K.

Heartbeat Stainless Steel Vacuum Flask

Thank you for the quality we expected. It's the perfect gift for ECG fan healthcare professionals.


Kelly H.

High-quality, heavy bottle.

High-quality, heavy bottle. Really nicely done and my son loved it. Great packaging for shipping. Thank you!

Jaime C.

Heartbeat Stainless Steel Vacuum Flask

Purchased as a gift, I'm sure she will love it!

A Cognitive Surplus Customer
Christy J.
United States United States

LOVE it!

I LOVE this thing. It's amazing. Keeps things cold (haven't tried hot yet, it's not chilly enough here). All of my friends in the medical field are jealous. It's awesome.

Daniel M.
United States United States

Everyone is jealous!

I purchased this for my mother-in-law (she’s a telemetry technician) and all her work friends are so jealous! They’re buying their own soon

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