Sonia Rykiel clay cotton tee w/black square yoke & bow

Sonia Rykiel clay cotton tee w/black square yoke on front & back. Front has a bow, back has logo tag. This may be a vintage top. Yoke has cerrated edging, hem has reinforced edge. Made in Portugal. Although size reads M, I put XS/S in listing since runs very small. Please see measurements!