A soft,thin 100% cotton summer white tunic/shirt

A white thin, soft 100% cotton shirt/tunic by Indiska. Size XL but, runs small : bust 40" ,length 36", 7.5" slits at sides, sleeves 17.5". 8 buttons in front and one spare button on the inside tag. Please note and see photos of 3 small spotted stains in the back of neck area.