This sophisticated sheer is made of 100% polyester, so it retains its elegant drape. Subtle variations are part of its inherent natural beauty. It is double-width and railroaded so that the pattern can be used in long swathes without seams. Rocha Sheer fabric in chalk color by Schumacher is a popular fabric in the Perfect Basics: Sheers & Casements collection. Schumacher Pattern Number 70330. Fabric World Product ID 538273.