Material for covering the seat?

[Meme]

The seat on my GZ is falling apart (again). I need to get some material to cover it that will last and hold up to the sun. I recovered my seat 2 or 3 years ago with the heaviest material I could find at the local fabric store. It came out great, and I was quite proud of myself. :2tup: That was, until it started falling apart again.

Does anyone know where to get some good sturdy black vinyl material to make a seat from? Something that will last more that a few years. I think the UV from the sun was the big killer.