Product for easy shower/bath remodel

[Adam Smith]

I stay in a lot of newer or remodeled hotels and have noticed a trend in the way the showers are done. They are made with these large sheets that are simply cut and glued in place with a caulk like in the corners, and a thicker edge piece running down the sides. It looks like real tile, but isn't. Does anyone know where to buy these, other than having the job done by Bath Fitter or the like?