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Hi-vis yellow polyester evaporative cooling vest with hook-and-loop closure and front pockets

Techniche

Techniche 6538 L/XL Evaporative Cooling Vest personal protective equipment

SKU CH-MM7W-D5WKG

Evaporative cooling vest provides up to 10 hours of relief at 15 degrees below air temperature with ANSI Class 2 high-visibility and hook-and-loop closure

  • Evaporative cooling lowers body temperature by 15°F
  • Up to 10 hours of continuous cooling relief
  • ANSI Class 2 high-visibility with U-pattern back stripes
  • Adjustable hook-and-loop fit for 40 to 45 inch chest
  • Machine-washable polyester vest with water-repellent nylon liner

Cooling Vest for Hot Work Environments

The Techniche 6538 L/XL evaporative cooling vest is personal protective equipment designed for workers exposed to high ambient temperatures. It uses a simple soak-and-wear method to activate cooling without requiring power sources or refrigeration. The garment fits chest sizes from 40 in to 45 in and meets ANSI Class 2 high-visibility requirements with a U-pattern back stripe. It suits outdoor crews, industrial staff and anyone needing portable heat relief during long shifts.

Thermal Performance and Wear Comfort

Once soaked, the vest delivers a cooling temperature of 15 degrees Fahrenheit below the surrounding air temperature for a maximum cooling time of 5 to 10 hours. The polyester outer shell combines with a water-repellent nylon liner to manage moisture while keeping inner layers drier during extended use. Hook-and-loop closures allow quick adjustment without tools, and the 23-inch length provides torso coverage without restricting movement. The evaporative process runs silently and adds no electrical load to the job site.

Practical Features for Daily Use

Multiple front pockets add storage for small tools, cards or personal items while the vest is worn. The machine-washable construction simplifies cleaning between shifts, and the hi-vis yellow colour maintains visibility in low-light conditions. No batteries, chargers or coolant refills are needed, reducing logistical overhead for teams. The vest is ready to deploy straight from the pack after a brief soak, making it practical for rotating crews or spontaneous high-heat tasks.

Highlights

  • Evaporative cooling lowers body temperature by 15°F
  • Up to 10 hours of continuous cooling relief
  • ANSI Class 2 high-visibility with U-pattern back stripes
  • Adjustable hook-and-loop fit for 40 to 45 inch chest
  • Machine-washable polyester vest with water-repellent nylon liner

Specifications

BrandTECHNICHE

Questions about this item

How do I activate the evaporative cooling and what step do people skip?

Soak the vest in water until the polymer crystals fully expand, then gently squeeze out excess water before wearing; skipping the soak time leaves the crystals dry and provides no cooling.

What maintenance does the vest need after repeated use?

Machine wash the polyester vest with the hook-and-loop closures fastened, then air dry; the water-repellent nylon liner and evaporative crystals do not require replacement.

How long will the vest stay cool during a full shift in direct sun?

The evaporative cooling lasts 5 to 10 hours and drops temperature 15 degrees F below ambient; in high heat and low humidity the duration trends toward the lower end of that range.

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