【Made in Japan Heater & 10-Second Rapid Warm-up for Full Body Warmth】 Featuring a high-performance Japanese fiber heater, achieving 5-second rapid warm-up and ultra-warmth up to 60°C! You can feel the warmth immediately when you suddenly feel cold. With a total of 8 heaters built into the back, waist, and abdomen, this is an ultra-warm heated vest with a large heating area. It's thin and lightweight despite being warm, so you can wear it as an outer layer or as an inner layer without bulking up, allowing you to enjoy fashion while staying warm. 【Up to 62 Hours of Continuous Use & Large Capacity Battery Included】 A full set of 40000mAh large capacity battery & heated vest, ready to use immediately upon arrival. Also, using the included battery, continuous use of up to 62 hours is possible (※ in one area & low temperature). The battery can charge other USB devices such as smartphones, and is useful in emergencies. 【4-Step Size Adjustment & Fits Various Body Types】 The electric heated vest allows for free size adjustment with shoulder buttons and zippers on both sides, accommodating various body types for both men and women. Adjust the chest size, hem width, and armhole size according to your body type, and wear the heat vest comfortably. It doesn't restrict body movement, so it's recommended for those who work outdoors in winter or those who work indoors where heating is difficult to maintain, such as warehouses. s285