Denim color shorts St Johns Bay

These were white shorts that were dyed black, but came out dark blue, denim looking color. Seem small for listed size 12, were given to me used - could they have shrunk? Seem like women’s M to me! Dye may fade or stain light colors although I have not had this happen to me with other dyed items. Free with purchase of $10 or more! Bundle for discount! Check out my closet for other items! Bundle & save!