This jacket is made of jersey material, making it comfortable to wear. Size is US6, which is approximately a size M. It's dark navy, almost black. It's hard to tell from the photos, but it has a subtle striped pattern. The stripes are not very noticeable. It has been worn very little, so there are no noticeable stains or damage. Shipping will be done compactly folded, using the most affordable method. Please excuse any creases from folding.