Krazy Kool Technology™ System - Prevention
Krazy Kool Technology™ System - Prevention
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Revolutionized Portable 24/7 Continuous Frozen Cold Therapy
Targets 1 Core Body Heat Zone: Carotid (nervous system, brain), Axillary (underarms), Inguinal (femoral/groin)
About This Item:
"Extreme Heat requires a Real Solution", especially when it affects our health, safety and our well-being. The Krazy Kool Technology™ System is exclusively designed, engineered and crafted with cutting-edge technology to provide a full day of fast, effective, continuous cooling. No refreezing. No plug-ins. No awkward gear. No mess. No noise.
What's Included?
4 Krazy Kool Technology™ Cold Cores with 1 Cold Core Thermal Pouch - Ice cold therapy packs for the ultimate, long-lasting heat relief and effective cold retention with zippered waterproof polyester
1 Temperature Regulator with 1 Temperature Regulator Storage Pouch - Two-way frost UV barrier: non-toxic, anti-bacterial, anti-microbial, compostable, UV+70 with a matching zippered waterproof polyester carry-on storage
1 Krazy Kool Technology™ Hyper-Evaporative Shell with 1 Hyper-Evaporative Shell Storage Pouch - Soft, comfortable, moisture wick, hypo-allergenic, UVA+40 and a matching, portable, zippered waterproof polyester
1 Krazy Kool Technology™ Thermal Storage Bag - Custom-designed, portable cold retention and zippered 600D polyester
Total Weight: 5.1lbs or 2.3kg
Size
Size
Universal fit. Total weight in use 3.5lbs.
Directions
Directions
Freeze Cold Cores until solid. Soak Temperature Regulator completely. Store for on-the-go use. Assemble Hyper-Evaporative Shell, Temperature Regulator, and Cold Cores together, then secure all three.
HOW-TO-USE:
Wear the System(s) according to your heat relief needs. See How-To-Use for full instructions.
Materials
Materials
Refer to individual Essentials for sizes and weights.
Washing Instructions
Washing Instructions
Gentle, cold water wash with light detergent and hang-dry only.
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Safety Information
Safety Information
Depending on the freezer temperature limits being used, the Cold Cores may reach or exceed 0°F (-18°C). Do not apply the frozen Krazy Kool Technology™ Cold Core directly on bare skin. Use in conjunction with the Krazy Kool Technology™ System.
Contents are not edible. Do not consume. Dispose if leaking.
Legal Disclaimer
Legal Disclaimer
Ratings are not precise and are done in an in-house environment and are raw estimates only, actual results may differ. We do not guarantee that the Krazy Kool Technology™ Cold Cores will reach or exceed 0°F (-18°C).
Although Krazy Kool Technology™ Cold Cores are designed and intended to perform in heat and to last all day, Krazy Kool Technology™ Cold Core actual performance is dependent on the temperatures of its surroundings. No claims or guarantees has been made or is being made that the product will remain cold regardless of external temperatures or that it will remain cold for specific periods of time. To extend the performance of the Krazy Kool Technology™ Cold Cores, it is recommended to store the system in a cool place, away from direct sun or heat.
The Krazy Kool Technology™ System provides personal cooling cold therapy and is a heat relief aid only and not a medical device.







Common Questions
What Are People Asking?
How does the Krazy Kool Technology™ System compare to ice cubes wrapped in a towel?
Ice bags in towels is neither very effective nor practical as an extreme heat cooling method. It is often used as a last resort, emergency situation to lower temperatures quickly, providing there is access to ice cubes and a refrigerator. Temperature, consistency and duration, all determine the effectiveness of cooling.
- Too Cold
- Not Cold Enough
- Can’t Stay Cold Long
- Constant Cold
- Heavy Maintenance
Find more details on our FAQ page.
Krazy Kool Technology™ System, is it just another wet cooling towel with ice?
Wet cooling towels are all made from PVA fabric or polyacrylate-based fibers. They provide some limited area cooling for about 10 minutes, under the right conditions. Wet cooling towels lose their effectiveness:
1) when the air is very hot and dry, as they need constant re-wetting; and
2) in an extremely hot, very humid environment, the wet towels cannot evaporate.
Find more details on our FAQ page.
How effective is the Krazy Kool Technology™ System compared to cooling vests?
Most cooling vests are designed to cool the chest area only by insulating the individual with cold ice packs. The inherent challenge in the design is that it only targets the cardiovascular region and does not target the core body zones that are responsible for cooling. Core Body Zones include the carotid arteries and veins to the central nervous system and the brain; the axillary area under the arms; and inguinal or femoral arteries in the groin area. Another challenge with the cooling vest design is in the technology of the ice packs as they are usually sheets of small ice cubes that melt rapidly, limiting the amount of cold therapy. Also, cooling vests are not versatile and limited in application. User size and needs vary and require varying applications such as: preventative; performance and recovery; as well as protection against heat stress.
Krazy Kool Technology™ System is designed to provide portable, versatile cold therapy in any environment without the constant maintenance or refreezing.
Find more details on our FAQ page.
Are Cold Cores JUST ice packs?
There are many ice packs on the market. Most freezer ice packs contain a water based gel in a plastic bag or hard plastic container. Unlike traditional ice packs that melt in minutes, the Krazy Kool Technology™ Cold Cores are a proprietary engineered design that contains a super cold refrigerant core, phase change material and a cooling thermal gel, all sealed in a protective durable heat reflective outer layer. It is engineered to cool the air around it at a controlled consistent rate, to deliver long lasting cold therapy, without the constant need for refreezing.
Find more details on our FAQ page.
How long does your Cold Core last?
We cannot guarantee the actual thaw time, as actual conditions vary. Where low quality ice packs fully melt within minutes and phase change ice packs last for 1-2 hours or so. The thaw rating for Krazy Kool Technology™ Cold Cores, with continuous unprotected exposure is 4-5 hours to reach 32°F/0°C, at room temperature.
The revolutionary Cold Cores were designed with its own custom, cold retention pouch to extend available stored cold therapy for an added 6-8 hours prior to full exposure at 74°F/23°C, consequently giving the user all day cold therapy.
How do I use your Cold Therapy?
Even slight increases in core temperature can result in slower reaction times, impair decision-making, and reduce muscle function. Professional athletes rely on a variety of cold therapy strategies to manage body temperature in extreme heat conditions:
- Preventative Cooling when you are slightly overworked, mild overheating or heat want to delay overheating, cool the body slightly. Target Zones: Carotid (neck);
- Pre-Activity or Exposure Cooling Routine to lower core body temperatures before activity or entering hot or extreme conditions, can delay overheating and reduce body cooling load. Target Zones: Carotid (neck), Chest, and Axillary (armpits);
- Periodic Activity or Exposure Cooling Routine during activity, game or practice breaks. Target Zones: Carotid (neck), Chest and Axillary (armpits);
- Post Activity or Exposure Recovery Routine core body zone and muscle
Target Zones: Carotid (neck), Chest, Axillary (armpits) and Inguinal (groin), then overused muscles.
Where can I take the Krazy Kool Technology™ System
Krazy Kool Technology™ System can be taken anywhere. To maximize cold therapy time try to keep the system in a cool shaded area. Leave it in your trunk during the day or take it with you when you are going shopping, walking, picnics in the park, to the beach, going to work or taking the kids to school. If you work or spend significant time outdoors, in hot humid conditions or extreme heat, implementing cooling routines with the Krazy Kool Technology™ System is critical in staying safe (Preventative, Pre-Activity, Scheduled Breaks and Post-Activity Cooling).
Athletes can integrate the Krazy Kool Technology™ System into their cooling routines:
- Football.
- Soccer
- Tennis
- Track & Field
- Cycling
- Pilates, yoga or fitness classes
- Indoor gyms or courts with poor or no air conditioning
- Work or places with poor or no air conditioning
Find more details on our FAQ page.
About Our System
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Science of Krazy Kool Technology™
Cooling From The Inside Out. Body cooling starts in the high blood flow regions and is carried naturally from the core throughout the entire body. An advanced condensing and cooling system that controls, regulates and delivers hours of constant cooling to the body's heat transfer zones.
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Engineered Cold
The Krazy Kool Technology™ Cold Cores are constructed from non-toxic, compostable materials: super-cold refrigerant core, phase change material, and a cooling thermal gel, all encased in a durable reflective thermal exterior.
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Revolutionized Cold Science for Extreme Heat
The Krazy Kool Technology™ System is rated to reach temperatures of -18°C or (0°F), stay frozen in its thermal bag for 10+ hrs in 30°C or (86°F) and deliver 4+ hrs of continuous cold therapy.
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Versatile, Wearable Personal Portable All-Day Cold Therapy
The Krazy Kool Technology™ System is the perfect "on the go" Heat solution with its long-lasting frozen time and interchangeable cold cores, eliminating the need for refrigeration and allowing you to wear the whole day. Great for delivery workers, construction workers, military personnel, sports, activities, recreational and endurance athletes, and new and pregnant moms.
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Durable, Reusable, and Non-Toxic
Unlike disposable or one-time use cooling packs, our Cold Cores are composed of non-toxic contents that are durable and built for repeated long-term use.
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Eco-Friendly and Economical
Being able to tolerate higher temperatures means you can use less air conditioning and save on electric bills.
Add the Essentials
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Krazy Kool Technology™ Cold Cores (350g x 2)
Regular price $14.00 CADRegular priceUnit price / perSold out -
Krazy Kool Technology™ Hyper-Evaporative Shell
Regular price $29.00 CADRegular priceUnit price / perSold out -
Krazy Kool Technology™ Temperature Regulator
Regular price $20.00 CADRegular priceUnit price / perSold out -
Krazy Kool Technology Storage Pouches (Pack of 3)
Regular price $15.00 CADRegular priceUnit price / perSold out
5-Star Review for Krazy Kool Tech
By Liam Buck – High-Performance Junior
Krazy Kool Tech is a game-changer. I used it while training abroad in extreme heat, and within just 5–10 minutes, I felt completely cooled down. It's simple to use—just chill the packs, insert them, and wrap it around your neck. The fit is comfortable, and the cooling effect is fast and effective.
Krazy Kool attention to detail really show in the quality of this product. I've already recommended it to my teammates and will continue to spread the word. Perfect for anyone training or working in hot conditions.
— Liam Buck – High-Performance Junior
I drove for 2 hours to the courts. I could not believe this thing. When I took the cold cores out of the sleeves in 34C degree, ice crystals from the humidity formed on them. I really needed to cool that day, as I had several matches lined up in a row. I used them every chance I had. First thing you notice is you feel the cold immediately and it cools you from the inside. I was able to play the whole match while my opponent just literally melted. The same thing happened at the second match. My third match was a no show as everyone either ran to the clubhouse or just left. The car was extremely hot and I wound down the windows. I sat in my car waiting and noticed I didn't need to use the a/c because I really didn't feel hot since my body was cool on the inside. Got home and still frozen. Now I know why they called it krazy kool. Right guys?
My husband is a lineman in Toronto and works all day everyday in extreme heat, wearing thick long sleeve shirts and pants. During the extreme heat waves we experienced this summer 2025, he used the cold core packs and they were amazing at keeping him cool and from experiencing heat stroke or extreme heat effects. We bought the entire system, and it is truly amazing! Wonderful customer service and product! Would highly recommend for anyone working outside.
I get really bad headaches, especially on hot days, and this really helped me relax and cool down!!