Polytunnel Covers

[MarkHackwell]

I need a new polytunnel cover to replace my green re-enforced one that the windows are falling out. I was thinking of either of these:

First Tunnels - Shop Online For Polytunnels - The Super Clear or Thermal Anti Fog Covers

Premier Polytunnels | Thermal Anti Drip - 720 gauge - Buy by the Metre

What are the advantages of both the Super Clear and Thermal Anti Fog Covers and which supplier do you think is best?

and any other suppliers or covers you can recommend that will last a few years Thanks