Acrylic refers to a plastic synthetic fiber material which contains mostly the chemical compound acrylontrile. This material is often used in sandals, and sneakers to get that shiny, patent leather look.
About Platform Sandals:
Platform sandals are sandals with a thick, raised outsole where both the heel and the toes are raised, thus providing height to the wearer. Platform sandals may also have an elevated toe area with a separate heel.