Enhanced Performance Fiber Unit (EPFU) ndi yaying'ono, yopepuka, yowonjezeredwa pamwamba pa sheath fiber unit yokhala ndi cholumikizira chopangidwira kuwomba mu mitolo yaying'ono ndikuyenda kwa mpweya. Wosanjikiza wakunja wa thermoplastic amapereka chitetezo chokwanira komanso kuyika bwino kwambiri.