This bag was just as described, heavy PVC. Working in a prison means checking your bag before you enter. That usually means stopping, opening up the bag and showing it's contents. Now I just walk by and lift it up and turn it once, no stopping. So far the only flaw is a missed stich area about an inch and a half long. A little stiching of my own and it will be perfect. It is durable as I leave it out in my car. We have had many a night below 10 degrees and it does not effect the bag whatsoever.