Well its the roof, it was a nice heated rear window one, but old. A while back, it was sound but discoloured, following what other people have done, I used kiwi boot polish to make it look like new. I'm thinking that was a terrible idea as the vinyl kind of went crispy stiff and dry after a while and I got a couple of little splits in areas that didn't matter.
Anyway after using the hardtop for a while, found it had shrunk and was trying to force it pulling it forward with my hands and upwards with my head! And yea it split where my head was. Gutted