Inspired by the three levels of formality in Japanese culture—Shin（真）, Gyo（行）, So（草）—this shirt is named So-i（草衣） as a relaxed “So（草）” garment, in contrast to the formal “Shin（真）” kimono. Featuring a standing collar and kosode-style sleeves, it gives a polished yet approachable impression.The more you use it, the softer it becomes, developing the natural luster unique to linen.