Features: Stay warm and cozy all winter long with our men's high collar heated cotton vest. The high collar design provides extra protection against chilly winds, ensuring maximum warmth. The carbon fiber heating elements are strategically placed to provide even and consistent heat distribution, keeping you warm from your back to your abdomen. Our smart and safe heating vest ensures a constant and 3 adjustable temperature levels - 25degree Celsius, 35degree Celsius, 45degree Celsius with just a click of a button to suit your needs. It is the perfect winter essential for battling the cold. Powered by a portable mobile power source (not included), you can enjoy hours of warmth wherever you go. The vest is designed to be compatible with most power banks. The IPX3 waterproof feature ensures that you stay dry and comfortable even in light rain or snow, while the four heating zones strategically target your neck, back, and abdomen. Note: 1. Do not access the charging bank if you do not use it for a long time. 2. Do not use high temperature water or strong acid detergent. 3. Turn off the power supply and stop using when the vest get wet. 4. The use time depends on the capacity of the charging bank. Specifications: Size Optional: S, M, L, XL, 2XL, 3XL Material: Fabric - 100% polyester fiber, Lining - 100% polyester fiber Waterproof: IPX3 Color: Black Package List: 1 * Heating Vest