Stay Cool. Stay Moving.

Built for hot days outside, Tern Fan-Cooled Workwear delivers powerful, wearable cooling wherever the day takes you. Dual high-output fans circulate fresh air around your torso, back, and neck, while 5 cooling speeds and up to 11+ hours of runtime let you adjust your comfort as conditions change. The lightweight, water-resistant design are built for yardwork, landscaping, fishing, hiking, camping, farming, DIY projects, and everyday outdoor use.

Features

[BEAT THE HEAT] Stay up to 10°F cooler with fresh air circulating around your torso, back, and neck.

[KEEP YOUR COOL] Dual high-output fans deliver strong, steady airflow wherever your day takes you.

[COOL ON COMMAND] Choose from 5 cooling speeds, from a light breeze to full airflow when the heat kicks in.

[ALL-DAY COOLING] Get up to 11+ hours of portable airflow from one rechargeable battery.

[LIGHTWEIGHT COMFORT] Lightweight, water-resistant nylon and breathable mesh keep you comfortable without weighing you down.

[BUILT TO MOVE] An adjustable fit and flexible design give you room to work, move, and stay active.

[COMPLETE SYSTEM] Ready out of the box, includes the Tern vest, rechargeable battery, charger, dual fans, and wiring harness.

[READY FOR OUTSIDE] Built for work, yardwork, hiking, camping, fishing, travel, and hot days outdoors.

[SMART STORAGE] Utility pockets, internal cord routing, and easy battery access keep everything secure and out of the way.

[WEATHER READY] A water-resistant shell and detachable hood help you adapt when conditions change.

[EASY CARE] Remove the battery and fans, then machine wash so it’s ready for the next hot day.

What's Inside the Kit

• 30V Rechargeable Li‑Ion Battery

• Charging Chord

• Dual High‑Output Fans & Wiring Harness

• Vest

Specifications 

Material: 100% Nylon 

Interior Mesh: 100% Polyester

Battery Type: Lithium Ion 

Voltage: Variable 17V - 30V

Run Time: 6-11+ Hours (approx)

Charge Time: 4 Hours (approx)

DC Output: 17V - 20V - 23V - 26V - 30V

DC Input: 12V-2A

USB Output: 5V-2.4A / 9V-2A / 12V-1.5A

Operating Temperature: 0°F ~ 104°F / 0°C ~ 40°C

Charging Temperature: 0°F ~ 104°F / 0°C ~ 40°C

Storage Temperature: 14°F ~ 113°F / 0° ~ 40°C

Water Resistance (Battery): Simple Waterproof Structure Not Guaranteed To Protect Against Submersions 

Battery Weight: 342g

Fan Power Consumption @ DC24V - 8V: 27.5W - 1.8W

Splash Proof, Water Resistant, and Dust Proof Performance: IP55 Rating

Run Time Modes

Fit & Size Guide

• Sizes S–4XL, with dimensions (in): 
  

Pro Tip: Size up for layering or freedom in motion.

Guides

User Manual 

Quick Start Guide