Heated Vest with Battery Pack Included, Warming Polar Fleece Smart Heating Vest. Ultimate Comfort & Lightweight Warmth】This heated vest is crafted from Polar Fleece, Spandex, and Polyester, featuring anti-static properties and excellent heat retention. It’s not only lightweight and comfortable, but also effectively resists cold weather while keeping a stylish look. 【Adjustable Fit for All Body Types】Designed with a unique side zipper, this unisex heated vest easily adapts to different bust and waist sizes, ensuring a customized and snug fit. The neat and tailored design allows for unrestricted movement, and it can be comfortably worn over shirts, hoodies, sweatshirts, or even under thicker coats and jackets. 【Smart Heating System with Targeted Zones】Equipped with 6 advanced carbon fiber heating elements, the battery heated vest delivers warmth to the abdomen, waist, neck, and upper back, gradually heating the entire body. Easily controlled with one button—long press for 3 seconds to power on, short press to toggle between three heat settings (104℉/40℃ to 150℉/65℃). Includes a thermal protection module that automatically shuts off in case of overheating and resumes when the temperature normalizes. 【Fast Heating & Health Benefits】Built with the latest carbon fiber and imported TPU heating sheets, this heated jacket vest heats up quickly in just 1–3 minutes, offering immediate relief from the cold. Beyond warmth, it also promotes blood circulation and metabolism.