[Lightweight and Comfortable]: The heating vest is made of lightweight insulation Waterproof Windproof materials (Power Bank Not Included) , comfortable and skin-friendly, and smooth to the touch. It can help you easily stay warm throughout the winter without the need for bulky winter clothing.Carbon fiber heating pads are built-in at the front and rear, allowing you to feel the warmth in 360.Quick heating, long-lasting warmth,heat up quickly without radiation. [Professional Service]: If you have any questions, please feel free to contact us help you can refund or replace it. We will definitely reply to you within 24 hours and give you a satisfactory answer. Polyester Machine Wash Fastening: Zipper Casual [Usage method ]: Step 1:Access to portable source.USB plug is compatible with most 5V mobile power supplies on the market Step 2: Press and hold the temperature control switch for 2 seconds, automatic temperature heating for 5 minutes Step 3: Thenthe red light will automatically turn white to medium temperature control Step 4: 3 modes are high temperature , medium temperature and low temperature heating ; Step 5: Long press the chest temperature control switch for 2 seconds, turn off the lamp to stop heating [Hand wash/Machine wash]: It can be washed by hand or machine. Take out the power bank, put the USB interface cable into the pocket, add neutral detergent to hand wash, do not rub or beat violently, and dry the washed clothes naturally before use. [Perfect Holiday Gift]: The heating vest can help promote blood circulation and relieve muscle pain to a certain extent. Deliver warmth and health to the people you care about. The perfect gift for the upcoming Thanksgiving and Christmas. [Matters Needing Attention]: Matters needing attention: 1: If not used for a long time, please remove the portable source ; 2: Do not use hot water or strong acid detergent; 3: Do not use electricity for wet clothes. Please turn off the power supply and stop using it if you are wet in the rain; 4: The service time depends on the capacity of the portable source Hello! Welcome to Rikay & YAOJIWANG store is one of the heated vest industry leaders !^ _ ^ The Heated Vest for men provides all there is that you need to keep yourself warm even in the most unforgiving cold temperatures without the unnecessary bulk of stacking up thick clothes. Whether you're out on a walk, riding a motorcycle, hunting, golfing, or simply on your way to work, this vest is definitely an essential you shouldn't miss 2022. Size: Please refer to the size details in the description, image before ordering!!!!! WaterproofAnti-fouling, warm, breathable, wear-resistant, ultra-light, anti-static, acid-proof. Facial Improvement and Body WarmerIt activates various functions between the skin and promotes metabolism. Heated body and blood circulation It warms the human body, consumes excess heat, increases blood oxygen and fluidity. Restoration of vitalityIt provides a deeper adjustment of physiological functions in order to avoid sub-health and restore vitality. Relief of PainIt can improve the microcirculation of the body, dredge and activate the meridians, eliminate local pain and inflammation. Have a nice shopping time! ^ _ ^