About this product Please choose a larger size, 9 zones are safer and warmer: The heating vest is ergonomically designed, with 9 heating zones distributed on important organs and acupuncture points. Built-in overheating protection prevents overheating or spontaneous combustion, ensuring a warm and worry-free experience. *Battery pack not included* Three-level heating: Quick heating in 3 seconds and 3 temperature settings to achieve personalized warmth. Continuous heating for 6-10 hours on a single charge (based on 10000mAh power bank; approximately 8 hours). Machine washableThe electric heating vest is made of lightweight and warm carbon fiber material, which is wear-resistant and waterproof. Comfortable against the skin, ensuring you enjoy exceptional warmth. The durable fabric and carbon fiber heating element are completely safe for hand and machine washing. (Please remove the battery before cleaning). Fit and LightweightThe heated vest is made of waterproof fabric and high-quality cotton, which is both warm and waterproof, keeping you warm and dry outdoors. The non-conductive carbon fiber heating plate means you can fold it wherever you like. Give it as a holiday gift to your lover, friends, children, parents. Let love turn into warmth and protect you against the harsh winter. Multiple Scenes, Convenient: This men's vest is thin and light enough for you to wear outdoors under a winter coat. You can wear it for skiing, watching track and field events, hunting, biking, fishing, mountain climbing, skating and other activities you like.