This bike has been somewhat difficult to research.  It appears that Schwinn started the "Project Underground" in the mid 1990's to try and prove that they were still alive and kicking.  The bikes were produced in limited runs of between 150-250 frames and sold primarily to shop owners.  I have seen several materials listed for this frame: carbon fiber, thermoplastic and fiberglass so I am not 100% sure of the construction.  This model was designed by Steve Levine over a 3 year period and produced by Top Key in Taiwan.  The Bass Boat paint was done by Rainbow Cycle Paint in Niwot, CO.  Since these were sold as a frame only, we used a nice mixture of mid to upper end components from that year.  If anyone has and additional details, please let me know.