Pro Max Thermax Heated Vest Size:M Innovative comfort and performance features

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

Waist belt with 2 side zip pockets for quick access

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

Also allows you to throttle with the palm of your hand

Pro Max Thermax Heated Vest Size:M Innovative comfort and performance featuresPolyester 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.