Machine Wash 2021 Updated Heated Vest: Our updated heated vest inner lining is made of silver-coated material, the middle is cotton-filled design, and the outter material is waterproof fabric. Three-layer fabric can keep warm better. So you never feel cold in winter outdoor sports with our heated vest. 3 Heating Levels Heated Vest: The heated vest for men has 3 available heating settings can be adjusted with just a simple press of the button so that you can choose the level according to the environment temperature. And the efficient heated design make quickly warm up even in the extremely cold weather Unisex Heated Vest Without Battery: Our heated vest for men women has four avaiable sizes which is unisex, you can choose the size according to the size chart. And this heated vest is no specific battery required. You can use your own power bank to connect it directly, but the power bank is not included in the package. Washable and Lightweight Heated Vest: This electric vest is made of lightweight and skin-friendly polyester fiber material, it has excellent thermal insulation properties, smooth, light and machine washable. Wearing it, you will feel comfortable, light and clean, can keep you warm in the whole fall and winter seasons. Great Service for You: Upgraded designed heating system ensures you enjoy comfortable warmth. Large area carbon fiber wire heater, safe and insulated. Our unisex electric heated vest is a perfect choice for birthday gift, thanksgiving gift and Christmas gift to your family and friends. And the entire vest is covered by a 180-Day warranty. If you have any problems with this heated vest, please contact us directly, we will solve it for you within 24 hours.