What if you could gain a competitive edge during strength training, workouts, or after sports to enhance muscle endurance and reduce fatigue? That’s what the NICE ROCC offers through innovative palm-cooling technology to decrease muscle temperatures through the bloodstream.



The NICE ROCC is an incredibly interesting device designed to boost recovery and performance for athletes of all kinds. Mostly bodybuilders, weightlifters, and players — hockey, soccer, basketball, football and beyond. There’s no ice involved whatsoever. It uses solid-state, electronic cooling with a range of 50 to 60 degrees Fahrenheit to help manage core body temperatures. The result? It enhances performance and endurance, reduces fatigue, and allows you to be the best you can be. That way, you can go ahead and continue breaking your personal records.

Via optimized and targeted palm cooling, it leverages Arterio-Venous Anastomoses (AVAs) to reduce bloodstream temperatures and deliver cool blood throughout the body. That helps restore Adenosine Triphosphate (ATP) production — the primary energy source for muscles — and counteracts muscle fatigue.

Built with machined aluminum, ABS plastic, and solid-state electronics, the NICE ROCC weighs merely 4.4 pounds. It’s ultra-portable and thanks to its capable battery, which can run for over two hours per charge, you can use it virtually anywhere. At the gym, at home, at a park or event, even in the locker room. A built-in timer with haptic feedback keeps track of your cooling delivery. It also signals when you’ve finished the optimal recovery time. Just turn it on and press your palms to either side of the device, and it will begin cooling you down.

How does the NICE ROCC work and boost endurance?

The video above explains the science and the process better than I ever could. But essentially, as you workout and use your muscles, they heat up, and that stops energy production and makes them more likely to shut down. The NICE ROCC uses a technique called palmer cooling or heat dumping to cool your muscles through your bloodstream by delivering targeting cooling to your palms. You may be wondering why there? In your palms are special blood vessel connections called Arterio-Venous Anastomoses (AVAs) which are highly effective at helping to regulate body temperatures.

Extensive military and university research supports this cooling process, clinically shown to boost endurance and reduce fatigue; professional athletes already use the NICE ROCC in the field. Some relevant studies appeared in The Journal of Strength and Conditioning (2011), The Journal of the Royal Naval Medical Service (1997), The Huberman Lab (2021), and the Stanford Report (2012).

While I’m no doctor, and this is certainly not medical device, the research seems sound.

Who is it for?

Athletes of all types, especially weightlifters, bodybuilders, and Crossfitters, who want to maximize their workouts and absolutely crush personal records.

Where to buy?

MSRP: $975