1、Polyester fiber,which is heat-resistance, wear resistance and can warm up rapidly. 2、A button to heating, three stall temperature control, intelligent heating. 3、Built-in portable source storge pocket, easy travel. 4、Smooth and durable zipper, wear off more convenient. 5、Soft and warm inner fabric, comfortable and skin-friendly. Description: This is a intelligence vest for you. Three stall adjustable temperature, press the button, easy to choose intimate temperature. With soft and warm inner fabric, comfortable and skin-friendly. It also can dredge meridian, enhance lymph circulation, blood circulation, promote metabolism. Why not have a look? You are worth it. Features: Polyester fiber, which is heat-resistance, wear resistance and can warm up rapidly. A button to heating, three stall temperature control, intelligent heating. Built-in portable source storge pocket, easy travel. Smooth and durable zipper, wear off more convenient. Soft and warm inner fabric,  comfortable and skin-friendly. It uses the medical acupuncture and moxibustion therapy that mainly aim to the acupuncture points treatment to dredge meridian, enhance lymph circulation, blood circulation, promote metabolism. It also has the infrared function which is effective to human body and pain relief as well as for killing harmful substance. It is flexible, washable, and can easily be worn with your daily attire.  Specifications: Item Type: Vest Material: Chemical Fiber Blended + Cotton + Polyester Fiber Input: 5V Current: 1.85± 0.05A Power: 9.5± 0.2W Temperature: 58℃ (Red LED), 53℃(White LED), 45℃(Blue LED) Heating Pad Size: approx. 12 * 17cm / 0.4 * 0.6inch Color: Dark Blue Vest Size: L, XL, 2XL, 3XL, 4XL(Optional) Size Height   Weight(kg)  Length(cm / inch) L    165 65 60.5 /  23.81 XL 170 75 63/  24.8 2XL 175 80 65 /  25.59 3XL 180 85 67.5 /  26.57 4XL  185 90 70 /  27.55 Package Weight: approx. 269g Package Include: 1 x Heated Vest