Products to help you stay cool and combat Hyperthermia.

Welcome to the world of TechNiche® brand cooling apparel.


Don't risk your health one more day. Wear a TechNiche® Body Cooling product from Core-Comfort.Com

Stay cool, stay comfortable, and stay safe with TechNiche® Cooling & Warming Apparel. The TechNiche® family of body cooling vests, headwear, and wraps are designed to help people lessen the impact of environmental heat conditions. This can help people with multiple sclerosis and other conditions that can cause heat intolerance as well as industrial applications, recreation, military, police, race car drivers and more. We sell TechNiche® evaporative cooling vests, headwear, and neck bands, phase change cooling vests and neck bands, and water based cooling vests. TechNiche® cooling products are designed to keep your body's core temperature within safe levels during physical exertion within high-heat environments. We offer products that leverage two different technologies to get the job done right: Evaporative Cooling and Phase Change Cooling. Each technology has its own designs for comfortable wear without restriction of movement.

Evaporative Cooling

Harnessing the power of evaporation, this advanced technology uses Polymer Embedded Fabric (PEF) that is sewn into the lining of all our Evaporative Cooling garments. The PEF absorbs water very quickly and releases it very slowly to actively cool the wearer, while helping to maintain core body temperature, provide comfort, enhance performance, and help eliminate the hazards of working, playing, and competing in high heat stress environments. Our PEF vests have five primary designs; the Evaporative Cooling Vest- Sport, the Evaporative Cooling Vest- Safety, the Evaporative Cooling Vest- Industrial, the Evaporative Cooling Vest- Standard, and the Evaporative Cooling Vest- Deluxe. These vests have a comfortable, quilted nylon outer fabric with a PEF inner layer, and a water-repellent nylon liner to keep moisture away from your skin. They have a zipper closure, and are trimmed in black cotton-poly elastic. The fabrics are lightweight, durable and washable. These vests provide 5-10 hours of cooling relief per 2-3 minute soaking.

Easy to Use:

  1. Soak garment in cool water for 1-3 minutes
  2. Gently squeeze out excess water
  3. Wear; repeat steps as needed
  4. Hang to dry
  5. Wash in mild, soapy water (as needed)

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Phase Change Cooling

This advanced technology uses specially designed COOL-U™ Inserts containing our Phase Change Material (PCM), designed to fit inside our garments. The temperature of the COOL-U™ inserts is a comfortable 58 degrees F (14 degrees C). Phase Change Technology improves the performance and endurance of the wearer by reducing the amount of energy wasted cooling the body and battling heat stress. PCM was designed to meet the needs of a broad range of commercial and industrial cooling requirements. Staying comfortable and safe in high heat areas requires an innovative body cooling solution. Our unique cooling vest carries heat away from your body, helps you keep a clear head and fight the symptoms of heat stress. The vests create a microclimate that keeps cooling in and keeps extreme environmental heat out. They are superb in searing heat, perfect for hazmat suits, high humidity and dangerously hot environments. PCM is non-toxic, non-carcinogenic, and non-flammable and can be re-activated over and over again. Our PCM vests come standard with 100% cotton, or fire resistant INDURA™, and NOMEX™.

To Energize:

You activate or solidify the PCM inserts by placing them in ice water for 20-30 minutes or in refrigerator or freezer for 35-45 minutes. They will remain at 58 degrees F (14 degrees C) for up to 3 hours. The clear, PCM liquid will "Phase Change" to a white, semi-solid that never fully freezes. Affix Cooling inserts into vest, slip vest on and adjust straps. As heat is absorbed from the body; the white, semi-solid will "Phase Change" back to a clear liquid. Duration may vary with environment and wearer conditions.

TechNiche® COOL-U™ Phase Change Material (PCM) Cooling Vests maintain a dry, comfortable 58 degrees F (14 degrees C). Better than ice or gel based systems that are too cold at 32°F (0°C) or less. Picture an ordinary ice or gel-cooled vest. It needs to be chilled below 0°, and then maintains that freezing temperature. Hold an ice cube against your chest and you get the picture - it's simply too cold to be comfortable. To alleviate the discomfort, insulating under-garments are needed as a barrier to the body, defeating the very purpose of a cooling vest. With our Phase Change Technology, you'll stay cool and comfortable at a temperature that feels natural to your skin and body. So comfortable in fact, that vest can be worn directly against your skin without fear of frostbite, tissue damage, or discomfort. And, unlike water and air cooling vests, there are no pumps, mechanical devices, or tethers for potential breakdowns during critical operations.

Easy to Use

  1. Submerge COOL-U™ PCM inserts in ice water for up to 45 minutes, or place in a freezer, until solid.
  2. Return inserts to garment pockets.
  3. Wear; repeat steps as needed (or use additional inserts for continuous relief)

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Evaporative/Phase Change Cooling PEF/PCM Hybrid Cooling Vest:

The Hybrid Cooling Vest offered by TechNiche® International is the only combination Phase Change Material and Evaporation vest of its kind. It uses our Advanced Hybrid technology for ultimate relief in cooling comfort and heat stress protection. This multi-technology product helps extend the cooling effect for the user and creates multiple use cases not available from a Phase Change only or Evaporative only vest. The specially designed inserts containing our Phase Change Material (PCM) which releases long-lasting, temperature-specific (58 degrees F, 14 degrees C), cooling relief designed to work with the Interceptor™ Outer Tactical Vest (OTV); unique “Buddy Swap” design for easy changing of inserts in the field.

  • COOL-U™ PCM inserts releases long-lasting, temperature-specific (58 degrees F, 14 degrees C) cooling relief for up to 3 hours.
  • PCM is non-toxic, non-flammable, durable, and reusable, lighter than water, and does not produce condensation.
  • Evaporative PEF Cooling fabric provides 5-10 hours of cooling relief per soaking.

Usage Instructions:

Preparation of the Evaporative Vest:

1. Soak the vest in clean water for 1-2 minutes or until fully hydrated.

2. Wipe dry or let hang for 10 minuets to dry. The vest will be dry when worn. The water is held by the Polymer Embedded Fabric liner. Depending on the weather conditions, the water in the vest held by the Polymer Embedded Fabric will evaporate over 4-8 hours, keeping the user 10-15 degrees cooler than the outside temperature.


1. The vest can be worn without the Phase Change Material inserts, and the user can use only the Evaporative portion of the vest.

2. Any water source can be used to hydrate the vest, however, the cleaner the water the longer the Polymer Embedded Fabric will last.

3. While the vest will look dry after it is soaked and hung to dry, the water will be held in the Polymer Embedded Fabric liner. The vest should look “fatter” than before it was soaked.

Preparation of Phase Change Inserts:

1. Place the Phase Change Inserts in ice water, or the freezer, for 35-40mins, or until frozen all the way through. The inserts freeze at 14.4°C.

2. Take the frozen inserts and place them in the pockets of the vest, one insert per pocket. There are four pockets, two in the front and two in the back.

Note: The inserts may look frozen after 15-20 minutes, but they are not. They need 35-40 minuets in the freezer to freeze all the way through. Freezing begins from the outside and works its way in so it may look frozen but it is not until 30-40 minuets have passed.

Wearing the Cooling Vest:

1. After the Phase Change Material inserts are properly frozen and the vest is soaked in clean water for 1-2 minutes the vest can be worn.

2. Place the vest over top your undershirt or combat shirt. Some soldiers are placing the vest over their undershirt and not wearing the combat shirt when regulations permit; otherwise the vest is being worn over the combat shirt.

3. Adjust the shoulder and side straps until you achieve a snug fit.

4. Place your body armor overtop of the vest.


1. Depending on the outside temperature, the vest will keep the user cool at 14.4°C for up to two hours.

2. The evaporation portion of the vest will last 4-8 hours and will keep the user 10-15 degrees cooler than the outside temperature.

Don't risk your health one more day. Wear a TechNiche® Body Cooling product from Core-Comfort.Com


1. An additional set of Phase Change Inserts

2. Insulated carrying case for additional set of Phase Change Inserts

3. Evaporative Cooling Boonie Cap

4. Evaporative Cooling Neck Band

5. Evaporative Cooling Beanie

6. Phase Change Cooling Helmet insert

7. Evaporative Cooling Sleeves

8. Combination Evaporative & Phase Change Vest with 70 ounce GULPZ Personal Hydration pack built in.

Sample Use Cases:

1. Soldiers going on long patrols will often leave out the inserts and soak the vest making use of the Evaporative features of the vest only. They then soak the vest whenever water is available. This reduces the weight of the vest when on long patrols.

2. Soldiers will wear the inserts when bedding down for the night to provide cooling while they sleep.

3. Soldiers in vehicles, or sentry duty. wear the vest with inserts and keep a spare set of inserts available to keep cool through the hottest part of the day. With this approach, they get up to four hours of cooling at 14.4°C and then are kept cool by the Evaporative portion of the vest or swap in the just frozen inserts.

4. Soldiers wear the inserts and hydrate the vest when going on patrol, sentry duty, working at base camp, making supply runs in vehicles, working in/with armored vehicles, flying helicopters etc.

What a TechNiche® Cooling Vest can do for you:

  • Increase Duration - People work less hours and take more breaks when they are suffering from heat stress. Workers report a 22% increase in work time while wearing this cool vest.
  • Improve Efficiency- Constant heat exchange rate enhances the body’s cooling. Lowers back and chest skin temperatures, and enhances mission accomplishment when performing any duties requiring long exposure to high-heat environments.
  • Improve Safety - During hot weather, heat illness may be an underlying cause of injuries such as heart attacks, falls and equipment accidents.
  • Protect Health - An increase in body temperature of two degrees Fahrenheit can affect mental functioning. A five degree Fahrenheit increase can result in serious illness or death.
  • Lower Costs- More Worker Compensation claims for heat illness come from agricultural workers than from any other occupation.
  • Decrease Hydration Needs- Less time spent replenishing lost body fluids.
  • Lower employee turnover- Workers experience less fatigue and stress, therefore stay at jobs longer.
  • Reduce physiological and psychological stresses caused by the heat.

Don't risk your health one more day. Wear a TechNiche® Body Cooling product from Core-Comfort.Com

Typical Applications:

Anyone who works, rests, or plays in extreme cold or hot environments. Our products are perfect for those who work in commercial and industrial professions. Typical applications include: Military, Construction, Foundries, Police, Heavy Equipment, Warehouses, Firefighters, Boiler Rooms, Factories, Hazmat, H.V.A.C., Delivery Personnel, Welding, Roofers, Trucking Companies, Landscapers, Road Crews, Virtually limitless applications!

Sports Applications:

Runners, Bicyclists, Mascots/Costumed Characters, Motocross Racers, Race Car Drivers, Off Road Enthusiasts, Soccer, Golfers, Baseball, Hunters, Street Bike Riders, Fishermen, Climbers, Tennis, Virtually limitless applications!

Medical Uses:

Our cooling products have been proven to help many people whose medical conditions cause them to be intolerant of the heat, and have been very successful in lessening the effects of heat stress as experienced by people who have the following conditions: ETS, Lupus, Multiple Sclerosis, Ectodermal Dysplasia, Spinal Cord Injuries, and heat sensitivity as a result of medications or organ transplants. TechNiche® Products have made summer easier to bear for all people! Get yours today - Because being cool never goes out of style!

Therapeutic Products:

TechNiche® offers several products designed specifically for Therapeutic applications. Our products deliver simple cooling or warming relief for aches and pains, and to people in wheelchairs. Our pain relief products include cold and hot therapy packs, cold and hot therapy compression wraps, cold and hot wheelchair back & seat cushions, and body cooling vests, neck bands and wrist bands.

Products designed to sooth and comfort you:

Phase Change Cooling products provide controlled cooling where you need it. These wonderful coolers have also been used by many to reduce the discomfort of hot flashes, headaches, sprains, and sore muscles. In addition, these unique personal coolers have been very successful in lessening the effects of heat stress as experienced by people who have ETS, Lupus, Multiple Sclerosis, Ectodermal Dysplasia, and heat sensitivity as a result of medications or organ transplants. They also protect themselves from the health hazards posed by hot weather conditions using our Standard Evaporative Cooling Sport Vests.

Air Activated Heating products provide soothing warmth where your body needs it. Specially designed fleece garments feature built-in pockets that hold Air Activated Warmers that deliver steady heat (approximately 137 degrees F, 58 degrees C) for up to 16 hours.

Don't risk your health one more day. Wear a TechNiche® Body Cooling product from Core-Comfort.Com

Long-Lasting Cooling Effect:

The Cooling Vests have been proven effective for up to 3 hours for the (PCM) and up to 10 hours for (PEF). Keep in mind that effectiveness is a variable of ambient temperatures, workload and physiology, so yours may vary.

Easy to Recharge:

Unlike conventional ice and gel packs which take hours to freeze in a freezer, one of the most exciting features of the (58 degrees F, 14 degrees C) phase change material technology inserts are their ability to recharge in ice water within 30 minutes! The inserts may also be recharged within a refrigerator or freezer and may be stored there without damage to the packs, until ready for use. You can keep a spare set of charged, individual inserts on hand in a portable cooler for quick and easy changeovers, with minimal downtime!

Product Safety:

Phase Change Material (PCM) is non-toxic, non-flammable, durable, and reusable, lighter than water, and does not produce condensation. NOTE: Discontinue using COOL-U™ inserts if they leak or are ruptured (call for replacements). Do not use the COOL-U™ vest near sparks, hot objects or open flame if the phase change liquid is absorbed into vest or other material.

They work:

The specialized ingredients in Evaporative Cooling Products stay cold up to 10 hours with no need for ice or refrigeration. Unlike phase change coolers or cool vests like Isotherm that use iced or frozen packets, these unique personal coolers maintain a steady cool temperature all day. Just soak once in the morning for a full day of immediate, comforting relief from the blasting heat as well as most disorders related to heat stress, including headaches, heat cramps, heat exhaustion and heatstroke.

No ICE, No Refrigeration:

TechNiche® Products: cool vests, neck bands, and wrist bands, are worn on key pulse points for maximum effectiveness. The combined endothermic and evaporative cooling processes actually cool the blood as it flows close to the surface of the skin. This works in harmony with the body's natural cooling system! This comforting process safely lowers internal (core) body temperature to a maintained level that reduces the heat stress on the heart, increases stamina and energy, and increases the users comfort level - even on the hottest of days and in the most extreme conditions!

Simply Soak in Water:

TechNiche® Evaporative Cooling Products never need to be frozen! Just soak the neck band or cool vest in water to activate! Unlike similar-looking products using ingredients originally designed for agricultural planting or disposable diapers, TechNiche® Products do not absorb perspiration or other body toxins so they do not tend to grow mold or mildew. Many companies have tried to copy these unique personal coolers, but it is important to note that most of the look-a-like products do not work as well as advertised. TechNiche® Products are guaranteed for both quality and performance.

Performance: Enhancement:

Since the early 1980's there have been numerous studies that indicate that cooling the body prior or during exertion in heat can improve the ability to sustain intensive workloads over long periods of time.

Cooler skin contributes to a number of physiological advantages.

  • Less cardiac output is directed toward the skin
  • A lower core body temperature means that it takes longer to rise to reach critical levels, and
  • Conservation of fluid (which normally would have been lost through dehydration), thus delaying the onset of dehydration and performance limits as a direct result of this.

Why use a Cool Vest?

Research by the U.S. Air Force has shown that using a cool vest minimizes heat strain during exercise in hot air, hastens recovery from heat strain, and alleviates heat strain during subsequent exercise. In this research, workers exhibited a 22% increase in productivity. Participants also experienced a reduced recovery time when using the vest, even when the vest was donned after completion of an activity. Build-up of core body temperature was slower while the test subjects were wearing the cool vest. Similar results were found in a heat stress assesssment of the Phase Change cooling vest conducted by NASA's Cape Canaveral Air Station. To see how your company can increase profits by reducing heat stress in the workplace and lowering workers compensation costs, download this excel profit calculator.

Don't risk your health one more day. Wear a TechNiche® Body Cooling product from Core-Comfort.Com