Materials: Outer fabric: 100% silk Lining: 100% nylon Interlining: 100% cotton Length: Approximately 125cm or more Width: Approximately 5.5cm This is a reversible (4-way) kasane-eri (layered collar). Regarding the lining, the folding marks appear to be stained, but this is just the color of the outer fabric transferring and is not actually a stain. The lighter-colored lining inevitably shows the marks from the darker-colored outer fabric when folded. If you are concerned, please use only the outer fabric. This is a new, unused date-eri (decorative collar). Please note that there may be slight differences in color due to the iPhone photography. No discounts are available.