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MiraCool® Phase Change

CoolPax™ is our unique Phase Change Cooling (PCM) technology. CoolPax™  freeze at 58° F/14° C and stays at the temperature for up to 3 hours. Compared to water, CoolPax activates faster, cools longer, are lighter in weight, and remain a cool and comfortable temperature that will not cause an ice burn.

How Does It Work?

MiraCool® Phase Change packs contain a carbon-based liquid, that absorbs heat as it changes from a solid to a liquid.

How To Use: 

  1. Place CoolPax™  inserts in a freezer or ice water for 35-40 minutes.
  2. Insert activated CoolPax™  into garment pockets
  3. Your CoolPax™  vest or accessory is ready to wear!

The Benefits Of CoolPax™:

  • Provides cooling of 58° F/14° C
  • Up to 3 hours of cooling per activation 
  • Reusable and easy to recharge
  • Works in all temperatures & all humidity levels
  • Non Toxic
  • Non Flammable
  • Freezes at 58° F/14° C
  • Freezes faster than water (30-45 mins)
  • Lightweight 
  • Durable
  • Reusable
  • No electricity or batteries required


MiraCool PhaseChange Benefit Icons

TechNiche Phase Change CoolPax ANSI Class Hi-Viz Cooling Vest

<div class="alt-part-number"> 6626-HV</div> Offers 2-3 hours of cooling, High Visibility, ANSI Class II cooling vest, 100% Hi-Viz Lime polyester, 100% cotton interior liner made with thermal liner

TechNiche Phase Change CoolPax Cooling Vest

<div class="alt-part-number"> 6626</div> Offers 2-3 hours of cooling, V-neck with zipper closure, Hook and loop girth and shoulder adjustments, 100% cotton vest, with thermal liner

TechNiche Phase Change Water Based Cooling Vest

<div class="alt-part-number"> 6826</div>For those requiring ultimate flammability protection, Water Based Cooling Inserts maintain a temperature of 32°F (0°C) for up to one hour

Phase Change Cooling Vest HRC 1

Part Number: PCV2A

<div class="alt-part-number"> PCV2A</div> Phase Change Cooling Vests contain 6 oz. Flame resistant treated cotton. Soft to the touch. Lightweight, cool and comfortable. Flame Resistant through 50 washes. Meets ASTM F1506. Arc Rating 7.2 cal. NFPA 70E / HRC level 1

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