The fabric of the down jacket in navy blue size Only in this way can more heat be locked in to achieve warmth. The entire garment is divided into velvet filling techniques to achieve down jackets made of light and thin fabrics without velvet leakage. The embroidery uses imported Behringer embroidery techniques to embroider the classic logo on the front and back to enhance the visual layering. The back collar hat can be used when not in use. The multi-functionality of the collar is also reflected in the fact that the entire garment can be zoomed into the lower pocket into a small bag shape.