- This is a new line of improved FR safety & protective elastics, launched by OTEX Specialty Narrow Fabrics™ and FULFLEX®. FR-FLEX™ features improved FR capabilities for an upgraded no melt/no drip performance with increased design options. Using FR-Flex™ allows for a thinner, flatter design with better hand while not sacrificing performance. End-use applications include harness webbing for SCBA, elastics for face masks, straps for thermal imaging cameras, suspenders and belts for pants and lifelines as well escape ropes for safety. All products are engineered to meet NFPA Standards.