Joseph ISA oversized dress from silk and cotton

Joseph oversized ISA dress cotton and silk in grey, the top of the dress is mercerised cotton (a very soft cotton jersey) the skirt is from silk, there are 2 slanted side pockets, a patch back pocket and a patch chest pocket, the waist is a broad elastic insert, while it is labeled a size S, it would easily fit 2 sizes up.
Shoulders 50 cm, armpit to armpit 52 cm, waist unstretched 39 cm, Length 112 cm
It is in very good condition and has only been worn once