Size Chart This batch of products is in standard European and American sizes. Please be sure to choose the vest size based on your own height and weight. Whether enjoying the outdoors, working outside in the cold, or just looking to get a little cozier indoors, we’ve got the heated Vest(with rechargeable battery)to deliver the right amount of warmth for every situation the moment you need it. 2024 Updated Version Two-touch 15Heat Zones LED Controller Heated Vest 6 Adjustable Heat Levels 15 Heat Zones (Up To 149?) 15 carbon fibre heating elements with core body warmth. There are two buttons to control the temperature, one button controls the heating of the front of the vest and the other button controls the heating of the back of the vest, both buttons can control 6 levels of temperature. Benefits Features Heated vest is a packable puffer made of wind and water-resistant, machine-washable, lightweight nylon material and cruelty-free filling. Carbon-fiber heating elements deliver up to 12 hours of rechargeable heat. Four heating zones in the chest, back, and neck with up to 149 F of instant heat will offer rechargeable warmth in all the right places, and keep you going on all of the adventures to come in warm comfort. Our heated vests reach temperatures as high as 149 F, this is an important element to ensure our loyal customers receive the safest heated clothing on the market. We match this versatile threading technology with an appropriate 7.4V battery that provides the right amount of power to the heated apparel without overheating, not only delivering heat the quickest but also providing the longest and safest running battery life. How It Works Wear your heated vest with or without the heating elements engaged to keep your core warm, simply press the control button to your desired warmth level and wait. Your battery pack will signal the conductive threading to send electrical currents throughout the item, reaching the temperature you’ve requested in roughly 30 seconds or less. Rather than using electric wires, conductive threading is a flexible e-textile that works with the wearer, making it a more comfortable option than the feel of wiring throughout your apparel. Conductive thread heating is an extremely lightweight yet durable heating option for wearable technology, offering high resistance, strength, and flexibility. What makes conductive thread safer than other heating options is the ability to handle high temperatures. Size Chart This batch of products is in standard European and American sizes. Please be sure to choose the vest size based on your own height and weight. Package includes: 1* Heated Vest 1* Rechargeable, 7.4 Volts, 20000 mAh Li-Polymer Battery Pack (Charger Bank Size: 92 * 65 * 33 mm) 1* Exquisite packaging If you're not completely satisfied, please contact our friendly customer service for assistance!