I recently bought a 07 Roadster (my first Z and car) and I would like some advise on keeping it clean, mainly for the top. The dealer told me that the previous owner switched the top so I'm not sure what material it is. I attached a pic of the top hoping someone can figure it out. Thanks you in advance for those that help

 

It looks like the same material as the OEM top. Formula 303 makes a cleaner/protectant for soft tops that seemed to work fine.

 

Yours appears "of quality," nice seams, even stitching etc.

Have OEM top, my philosophy is "less is more." 1) I keep my ride garaged, use a car cover and 'top up' for all down-time, never up for drive time, 2) Rarely use cleaners/soap/conditioners etc., hose it off, keep it dry, nothing more. I spend my energy on cleaning and lubrication (mechanical/electrical).