Instant Warmth Heating Vest, unisexKEEP YOU WARM WHENEVER, WHEREVER! Designed to provide warmth and comfort during cold weather. It also promotes blood circulation preventing fatigue and muscle pains. It is durable, water resistant and wind resistant. Due to the popularity of the product, our company introduced an improved vest with two additional heating zones to make the winter warmer and more comfortable. Made with a nano heating technology which helps in saving energy. It has three