I am in the process of building a new set of leather shaders, derived from my old ones.
At the moment this is a WIP for testing and evaluation. There is no documentation.
The zip file below is not a full runtime - just a folder with some materials and thumbnails. Drag it into the runtime of your choice under the materials folder tree.
See this thread for info or to ask questions: http://www.renderosity.com/mod/forumpro/showthread.php?thread_id=2806484