Patagonia Down Vest, 2018 Model Size: S (Equivalent to Japanese M size) Color: CACL (Navy) This is the popular S size in navy. Patagonia often uses polyester fill for down-style products, but this one actually uses down and feathers, making it a genuine down product. As shown in the first photo, there is some blackening on the front, but it's not very noticeable. It should come out with cleaning. It will be shipped folded. Please purchase only if you understand that this is a used item.