OccuNomix Hot Rods® Tube Liner, Classic Flame Resistant Full Face, series: LK910-FR, Specifications: 11.6 cal/sq-cm ATPV, 9.5 oz Modacrylic Soft Rib Knit, Navy. OccuNomix Hot Rods® LK910FR-01 Classic Flame Resistant Full Face Tube Liner, 11.6 cal/sq-cm ATPV, 9.5 oz Modacrylic Soft Rib Knit, Navy