The new fiber “NEORON” was invented exclusively for Nefful. Both NEFFUL and TEIKEN have put forth full devotion towards the innovation of NEORON’s research and development. All our efforts have been focused on implementing NEORON into production. The new technology and research invested has suggested that NEORON creates better material blends for better products! NEORON is made from most of the same materials as Teviron (Nefflon) and retains all of its features. Neoron’s extensive line of products employs negative ion technology just like our old line Teviron! Neoron supplies you with negative ions at all times, delivering health benefits like never before!