Welcome!
Calsink Corporation was started to solve a simple problem: I exercise regularly but love shoving sugary garbage in my face. I wanted a way to get/stay less fat without having to significantly change my diet or spend hours a day swimming laps.
The solution? A Calorie Sink, a liquid-cooled garment and thermoelectric hub that extract body heat and cause extra metabolic activity.
Wear it while you work, watch TV, or read. Lose 5-7 pounds a month. Your body burns calories like you're exercising while you keep chilling.


Easy to wear for hours!
Custom garment is engineered for feeling of softness and lack of pinching, constriction or other discomfort.
Take video calls without people thinking you're weird!
Low-profile shoulder garment fits under most crew-neck clothing, saving you from trying to explain what you're wearing and why. (Or, be a real cooling champion. Throw caution to the wind and wear the extra neck garment, or a third-party full torso or even full body garment of your choice.)
Flexible and endlessly configurable!
Worried about getting too cold? Don't be. Dial in the temperature settings and session lengths of your choice and the hub's internals will handle the rest.
Real Testing. Real Results.
18.5 lb
lost over 90 day period
80%
increase in metabolic rate*
0.82 → 1.48 cal/kg/hr
171%
increase in fat oxidation*
417.50 → 1132.01 μmol/min
* Laboratory testing with CO₂ metabolic analysis. Individual results may vary. Your body will naturally try to supplement heat by getting fidgety. Trying to keep yourself 100% still may result in intermittent deep-body shivers that may scare the research coordinator. Do not allow their cowardice to deter your journey of self improvement.

The Road to Launch
After significant self-testing and validation, we're now developing a consumer version to share with the public.
Prototype(s)
Create prototype thermoelectric cooling base stations, variety of test garments, and logging infrastructure for use and testing.
Alpha Testing
Design and produce a hub and garment set for daily wear, use it daily while debugging quality-of-life issues.
Consumer Redesign
Redesign prototype for consumer-ready manufacture.
We are Here
Public Launch
Full market availability with multiple garment options.