*Feature:1.1 Minutes fast heat, dispelling cold and keeping you warm.2.Set the temperature you want to respond to a variety of environments.3.A button to heating, three stall temperature control, intelligent heating.4.It can be washed by machine and can be washed by hand. Do not wring it by hand.5.General USB interface power supply, longer service life,anti water splashing and washable.6.The fashion is warm, comfortable and breathable, and it's a good partner for your winter going out.*Specification:1.Style: Sleeveless Vest2Material: Polyester3.Color: Black/Blue/red4.Size: S/M/L/XL/2XL/3XL/4XLTwo Area Are:   Neck and AbdomenFour Area Are: Neck*1 and Abdomen*2 and back*1

Nine Area Are: Neck*1  and Abdomen*2 and back*2 and waist*2 and Shoulder *2

1. Asian sizes are 1 to 2 sizes smaller than European and American people. Choose the larger size if your size between two sizes. Please allow 2-3cm differences due to manual measurement.

2. Please check the size chart carefully before you buy the item, if you don't know how to choose size, please contact our customer service.

3.As you know, the different computers display colors differently,  the color of the actual item may vary slightly from the following images.