Thank you for viewing! This item is unsewn, so if you require tailoring, we can arrange it for an additional 3,000 yen, which includes the interlining and processing costs. There is no Nishijin textile certification tag. The processing time is approximately 2-3 weeks (cotton interlining, machine sewing). Please note that there may be slight color differences due to iPhone photography. Please feel free to contact us if you have any questions. ^_^