The down jacket is made of double white size XSXXL fabric made from the same manufacturer as the genuine fabric supplier. The fine grid nylon gall-free anti-down fabric is as light and warm as the original down national standard 80 white duck down to achieve the best fluffiness, making the down truly close to the skin. In this way, more heat can be locked in to achieve warmth. The technology adopts the divided velvet filling technology of the whole garment to achieve the down jacket with light and thin fabrics without running down. Embroidery adopts imported Behringer embroidery technology to embroider the classic logo on the front and rear to enhance the visual layering. The back collar hat can be worn at any time. The multifunctionality of the collar when used is also reflected in the fact that the entire garment can be zoomed into the lower pocket into a small bag shape.