Basically laminated paper
I'm rating this two stars simply because the artwork is nice.  This was basically a large, laminated sheet of paper.  I did not upgrade to 'weatherproofing', so I'm not sure if that would have changed things aside from adding gromets to the corners.  This was not the typical banner material I'm accustomed to.  I always read reviews prior to placing an order, but there were none on this.  That was my mistake.
Rating: 2 stars