What material are my shower curtains? Americanflat Administrator April 21, 2021 16:38 All shower curtains are made from 100% Polyester fabric. Related articles Do the shower curtains have a shiny or matte finish? Where is Americanflat based? How thick is the plexiglass on your frames? Can I create custom artwork for Americanflat to produce and ship to me? Does my frame come with hanging hardware? Comments 0 comments Please sign in to leave a comment.