Welcome to our store！</br> 1、7 Zone Heating: These heating zones are reasonably distributed in the back, shoulder, waist, stomach, abdomen, shoulder two heating zones, front two heating zones, back three heating zones. 2、Bamboo Carbon Fiber Heating Wire: Built in bamboo carbon fiber heating wire emits far infrared, and the far infrared emissivity is up to 0.87. It can store heat and keep warm, conduct heat quickly, and has high safe ty performance. 3、Use: The heated clothing does not include batteries. The clothes themselves do not have the function of storing electricity. They should be connected to an external charging bank for use. 4、Applicable: The heating vest is very suitable for outdoor activities, hunting, skiing, fishing, motorcycles, bicycles, camping, mountain climbing, office work, etc. 5、Washing: Our electric heating jacket can only be washed by hand and dried naturally. Do not dry mechanically. No Ironing, No Bleaching. <p class="wang-edit-text"><p class="wang-edit-text"> Item Type: Smart Heating Vest Material: Polyester fiber Size: M: Shoulder: 38cm/15.0in, waist: 96cm/37.8in, length: 58cm/22.8in L: Shoulder: 40cm/15.7in, waist: 100cm/39.4in, length: 60cm/23.6in XL: Shoulder: 42cm/16.5in, waist: 108cm/42.5in, length: 63cm/24.8in <style> .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }</style> 1 x Smart Heating Vest Satisfaction - Our customers are our top priority. If you find any product problems after receiving the goods, such as damage and incorrect quantity of goods, please contact the seller immediately. We try our best to provide you with satisfactoryaftersalesservice</br>