Shower Splash-backs

I'm installing a new 900 x 900 shower as part of a bathroom renovation. Instead of tiling the shower, I'd like to use one of the synthetic sheet splash-backs which are much easier to keep clean and not prone to cracking like a tiled finish on a stud wall/floor. I'm aware of two kinds of such splash-back. From the description, one type sounds like sheet fibreglass with a gelcoat (not appealing), the other sounds like PVC or some other plastic which come as one sheet with a folding plasic...

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