This is a collaboration between Mountain Research and Mastermind, a riders-type concho down jacket produced in extremely limited quantities, and this is a rare XL size. Unlike collaborations that only modify sleeve parts, this jacket utilizes Research's design resources, featuring custom-made silver conchos, Gore Windstopper, and a commitment to materials such as 100% down filling (most down jackets use a feather mix), making it surprisingly lightweight and highly functional. In addition to its functionality, the jacket boasts a unique matte black texture and a smart silhouette, surpassing the original concho down jacket by Research in terms of completeness. Actual measurements when laid flat are approximately 55cm for the chest width and 69cm for the length; please note the thickness of the padding. The sizing of Research's concho down jackets at the time was quite small, and this item is comparable to a regular L size. There are no noticeable scratches or stains, but the hood part is missing, and the print on the product name tag on the collar is worn, with the tag itself starting to peel off. There is no tobacco or pet odor. It will be compactly packed for shipping. Material (Filling): Down Color: Black Type: Down jacket (short/mid-length)