Here it is...
For 17 bucks, it's a nice product.
The fabric reminds me of marine canvas.
The outside is the nylon or polyester material and the PVC membrane is on the inside.
It just barely fits a 22.5" OTG (two opposing handles).
I have the heavy duty Weber cover for my WSM.
On the Weber, the coating is on the outside....it would be better in direct exposure to a harsh winter.
My aftermarket lives under cover so it will be fine.
And the winters aren't severe out here.