Pro Max Thermax Heated Vest Size:M Operating temperature: -10°C ~ 55°C

Operating temperature: -10°C ~ 55°C

For 4 riders at a range of up to 1

advanced processor and 3 uniquely-designed sound profiles will transform any ride

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

3 sizes to fit most common handlebars

Pro Max Thermax Heated Vest Size:M Operating temperature: -10°C ~ 55°CPolyester 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.