Canvas (?) Material

I think this is a canvas material. It is heavy duty and has some weight to it. Dimensions listed in photos. I made a nice sturdy tote bag out of it years ago. This has been stored in a closet ever since. Great condition. Please note there may be a slight variation in color due to differences in your phone screen and mine. I tried to take pictures with flash on and off to give you a better idea of color. Feel free to make an offer.