Acrylic is widely to be considered the best material for the construction of walk in shower walls, however many will opt for tiling to provide the perfect backdrop to their walk in shower enclosure.
The main benefits of acrylic are ease of installation and simple, low maintenance. It also offers excellent durability and waterproof functionality, as well as a seamlessly smooth aesthetic, though provides less scope with regards to design options than some alternatives.
For a better insight into all aspects of walk in showers, take a look at our dedicated blog pertaining to 12 Wonderful Walk In Shower Ideas.