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Pre-Order Notice: This item is expected to ship on or before November 14, 2026.

Orders will be reserved and shipped as soon as inventory becomes available. Thank you for your patience!

COOL MEETS COMFORT.

Beat the heat without sacrificing protection. Our Fan-Cooled Long Sleeve Jacket delivers all-day airflow—perfect for blazing jobsites, sun-soaked trails, or weekend adventures.

Designed with integrated fan-powered ventilation and a lightweight technical shell, the Tern Fan Vest circulates air throughout your core to reduce heat buildup while maintaining a clean, versatile look that pairs effortlessly with your everyday wardrobe.

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

  • Long Sleeve Jacket

Specifications 

Material: 100% Nylon 

Interior Mesh: 100% Polyester

Battery Type: Lithium Ion 

Voltage: Variable 17V - 30V

Run Time: 6-30 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 M–2XL, with dimensions (in):

    •  M: 46×19×27

    • L: 49×19×28,

    • XL: 51×20×28,

    • 2XL: 54×21×29 

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

Guides

User Manual 

Quick Start Guide 

PRE ORDER: 30V Battery-Powered Fan-Cooled Long Sleeve Complete Cooling System Kit

SKU: TWJ-L-M-KIT
Size: M
Color: Latte
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