Vintage denim midi dress size S/M

Vintage 100% cotton lightweight denim midi dress with side pockets and detachable tie belt. Button front. Small imperfection in the fabric beside one chest pocket (see photo). Not very noticeable. In otherwise excellent condition. No size tag so please check measurements! Ive labeled it a small based on how it fits my size 6 mannequin but there is extra room pit to pit so it may fit a medium. Brand: Files. b68