i ordered dungarees as opposed to canvas (you have ads selling the same product, some describe it as canvas and some as dungaree) since there was a possibility to choose either canvas or dungarees and I did not want canvas I ordered my pants from a supplyer who advertised dungarees and did not mention canvas. To my great disappointment, I recieved canvas pats. The size, color and shape are great but it is canvas.  Is there an explaination, are there pants that are dungarees and not canvas?