Pro Max Thermax Heated Vest Size:M The M3V2 reel on the

The M3V2 reel on the side adjusts the lower zone for fine-tuned comfort

Operating temperature: -10°C ~ 55°C

Innovative comfort and performance features include Venturi Venting that pulls moist air out without letting cold air in

Also allows you to throttle with the palm of your hand

while updates to the hardware allow for a more robust general performance

Pro Max Thermax Heated Vest Size:M The M3V2 reel on thePolyester fleece with carbon fiber heating elements. 3 level smart control: high, medium, and low. Heating Temperature: 45 60 C. Heating time: 3 8 hours. Heating Area: Left chest, right chest and the back. Includes: switch buttons, lithium battery pack, charger and instructions.