Placeholder Heartbeat Stainless Steel Vacuum Flask / Insulated Travel Thermos – Cognitive Surplus

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Heartbeat 18 oz Steel Bottle

$ 39.95
18 reviews
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.

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
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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Customer Reviews
4.9 Based on 18 Reviews
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Filter Reviews:
Sheila B.
United States United States


The quality is definitely up there. I left mine in the hot car in Arkansas summer for hours and my drink was still cold. I really love the design. I’m a new nurse and this helped me remember the rhythms. Very well made too. I’m getting more!

Renee R.
United States United States


Yes, my coworkers are ordering theirs!! Great gift idea!! Love all the unique products!!

Stephanie G.
United States United States

My Cardio ICU professor and mother in law LOVES this

I bought one for my MIL who has been a nurse for over 35 years and is now a professor. She started out on a cardio ICU and it was her “first love”! She was unbelievably delighted to receive this water bottle and even named off each rhythm before looking at the name— she says it’s impressively accurate. She took it to work the next day to show it off and everyone loved it! I bought one for myself as I’m in nursing school and in a cardiothoracic step down clinical placement! It’s great quality.

Vernon W.
United States United States

More than a drink container.

This was bought as a gift for a friend who is learning basic heart rhythms as part of a medical program she is in. I like the quality of the container, and I especially liked not only how fast it was shipped and received, but how incredibly well it was packed for delivery. According to the student, it’s a great study aid, awesome drink container, and liked by the other students!

Ellie E.
United States United States

Perfect gift for an RN

This was a gift for my husband who is a PACU/SACU/OR nurse. He loves it and uses it to keep coffee warm during his shift, works great and he’s gotten many compliments already!

Abby S.
United States United States

Great quality

This was a perfect graduation gift for my 2 classmates that are going into cardiac & ICU nursing! Everyone that saw it asked me where I got it! This bottle is super high quality & so unique! (Plus it's actually useful if you need a quick glance at the information to refresh your memory!)

LeAnn C.
United States United States

Heartbeat water bottle

Love it! Prefect for any health care worker. It also keeps your beverages nice and cold! Love it.

United States United States

Great Gift

I bought this for my friend who is an EMT. He just got a new job at a bigger and more prestigious fire department and I found this for a congratulations gift. I wasn’t sure he’d like it, but he loved it and had to take it to work to show it off to some friends. I have won gift giving this time. Does need to be hand washed.

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!!

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