Beat the Heat Before It Beats You

Cryo-1 helps cool your body before heat stress takes over - so you can stay in the game longer.
Based on 29 reviews

Cryo-1

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    It gives me real relief on the course and lets me comfortably finish my rounds. It’s added another hour of play to my day. They really hit a home run with this product.
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    Ian P.

Play Longer. Recover Faster

People using Cryo-1 during outdoor sports commonly report:
  • Feeling less overheated between games
  • More energy late in sessions
  • Clearer focus and coordination
  • Better tolerance to hot conditions

Used consistently, Cryo-1 helps athletes enjoy more time outdoors without feeling wiped out early.
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How to Use Cryo-1

Outdoor Sports

No ice. No water. No setup.

 Turn it on Cold
You can use it right away but device will reach ideal operating temperature in 60 seconds.
Hold it in your palm
With a relaxed grip, hold the metal surface in your palm during normal rest periods.
Get back in the game
Use as needed throughout long sessions in the heat.

Customers are Saying
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How Cryo-1 Helps

The Problem

Heat Changes How Your Body Performs

In outdoor sports, heat doesn’t just make you uncomfortable - it limits how long you can keep going.

As your body heats up, fatigue accelerates. You get foggy. Coordination slips. Simple things like pacing, hydration, and recovery start to break down.

This is when people push through when they shouldn’t - and that’s when heat stress becomes a real risk, especially for kids and older athletes.
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Cooling that works between breaks

Palm Cooling Helps Control Heat Buildup

Palm cooling has been clinically studied in heat‑stress, military, and occupational physiology research since the 1970s.

That research consistently shows that targeted cooling through the palms can reduce core temperature and slow heat-related fatigue.

When Cryo-1 is used on the sidelines between games, sets, or innings:
  • Heat is pulled directly from the bloodstream
  • Core temperature begins to drop
  • The body’s natural cooling systems become more effective
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Peer reviewed Science

Outdoor heat challenges millions every year, Palm Cooling can help and we have the data.

Han et al., (2024)
Heat Stress Reduces Worker Productivity

A meta-analysis of over a dozen studies covering ~2,400 construction workers found that when wet-bulb globe temperature rose above 28 °C, about 60% of workers showed reduced productivity due to heat stress.

This means that in hot conditions, most workers slowed down, took more breaks, or were unable to finish their normal workloads. Even modest increases in temperature had clear effects on both safety and economic output.

Read the study
Burgess et al., (2012)
Active Cooling Speeds Firefighter Recovery

Research on live-fire drills shows firefighters’ core temperature and heart rate rise rapidly under heat and exertion.

In these studies, firefighters who used active cooling methods—such as applying cooled water or holding cooled devices during rehab—saw their core temperatures drop faster and their heart rates return to baseline more quickly than those who only rested.

This demonstrates that active cooling can significantly speed recovery compared to passive rest alone

Read the study
American Progress 2024
Heat Stress Costs Billions in Lost Work

The International Labour Organization estimates that countries may lose 2–5% of working hours in high-heat sectors by mid-century without better mitigation (ILO). This loss translates into hundreds of billions of dollars in global economic impact, as fewer working hours mean less output and higher costs for businesses.

In the United States alone, heat stress is already estimated to cost employers around $100 billion per year, primarily through lost productivity, absenteeism, and higher healthcare expenses (FAS).

Projections suggest this could double to $200 billion annually by 2030 and climb as high as $500 billion by 2050 without intervention

Read the study
Nagashima et al., (2025)
Outdoor Athletes at Risk of Heat Exhaustion

A recent study of amateur golfers reported a high risk of exertional heat exhaustion in hot and humid conditions, especially with poor hydration and limited rest.

The researchers found that players frequently experienced elevated heart rates, dizziness, and reduced performance when playing in high heat without proper cooling or recovery breaks.

By slowing the rise of core temperature and easing cardiovascular strain, palm cooling may help golfers, pickleball players, and other outdoor athletes avoid hitting these dangerous thresholds.

Read the study

Listen To An Expert

The Palm Cooling Advantage Explained

Here's neuroscientist Andrew Huberman breaking down why palm cooling works at a physiological level and the extraordinary results it offers.

If you want the science, straight from the lab, hit the play button.
Cryo-1

Cryo-1

$149

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Accelerate Recovery. Reduce Heat Related Distress.

Cryo-1 is a handheld cooling + warming device designed to help your body regulate temperature and recover faster in real time. Use it in your palms to cool your core, or on the side of your neck when you need to calm your body fast.
Key Features
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About the size of a small water bottle.
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Cools & Warms. Battery life up to 4hrs.
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12 month warranty, 30 day trial period.
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No water, no ice needed.
Specifications & User Manual
Temperature Modes

Cooling: 12, 14, 16 °C (54, 57, 61 °F)
Warming: 35, 39, 43 °C (95, 102, 109 °F)

Battery Life

Cooling: 1 to 3 hours per charge (depending on selected intensity)
Warming: 3 to 4 hours per charge (depending on selected intensity)

Operating temperature

Best used in environment under 80°F/26°C. Expect slower cooling at warmer temps.

Cycle time

Auto off after 20mins

Dimensions

6.28 in (H) × 2.83 in (D) × 2.44 in (W)
160 mm (H) × 72 mm (D) × 62 mm (W)

Weight

13.8 oz (390 g)

Power

Rechargeable lithium-ion battery (USB-C charging). Approx 4hrs full recharge time.

User Manual

Click to download.
Warranty & Returns
Warranty

Cryo-1 comes with a full 12-month manufacturer warranty. If it fails, we'll replace it at our cost.

Returns

We offer a 30-day return period. If you’re not satisfied, you may return your Cryo-1 in its original packaging for a refund.
Paying with FSA/HSA cards

At checkout you may pay with your FSA/HSA card. Just choose FSA/HSA as the payment method.

FDA-Registered Manufacturer
FDA-Listed Class I Therapeutic Device

  • Cryomedics LLC is officially registered with the U.S. Food and Drug Administration as a medical device establishment.
  • Cryo-1 is listed as a Class I device under FDA regulations.
  • Most HSA/FSA plans recognize Class I therapeutic devices as eligible medical expenses. Check with your plan administrator to confirm coverage.

Frequently asked Questions
How long does the battery last?

Cryo-1 delivers extended use on a single charge. Battery will last longer when used on lower power settings.

  • Cooling runtime: 1 to 3 hours
  • Warming runtime: 3 to 4 hours
How do I recharge Cryo-1?

Cryo-1 recharges via USB-C in about 3.5 to 4 hours using a standard 5V/3A power source.
Does Cryo-1 require ice or water?

No. Cryo-1 uses built-in battery powered cooling modules - no ice, water, or prep required.
Is Cryo-1 noisy?

Not at all. Cryo-1 operates at 47 dB, similar to a very quiet computer fan.

More FAQ's