Vintage 90s Sonia Rykiel trenchcoat size small to hot small medium

Sonia Rykiel vintage 90s trench coat size small to small medium. Has covered buttons, extra buttons and pockets. Original belt included. Long length. Seems to be made of cotton but as the label is in Japanese I can't read it. One small white mark that will most likely come out with cleaning but is not noticeable. Long pleat on hot back for ease of walking.