BIMobject today released 98 new BIM objects on the portal in the form of seamless textures from the company Uddebo Weaveri. Find them at http://bimobject.com.
These are easy to search and find on the portal. You can also filter manufacturers and then add free search filter text to further limit your search, for instance a group of fabrics like Filippa series or Ballad series.
The download is in .PNG so it can be used in any CAD, 3D or BIM system like Autodesk Revit, 3ds MAX, Artlantis Render/Studio, Graphisoft ArchiCAD and Sketchup. All textures are fabrics that you can really design with and buy from Uddebo Weaveri. The web based BIM object contains the product link and product information.