• 100% Double Knapped Nomex® IIIA Knit
  • Optional Zip-in/Zip-out for Omega FR™ and MP3 Jackets
  • Flame Retardant
  • Resistance to
    • Electric Arc
    • Flash Fire

ArcWear™ Nomex® IIIA Fleece Order/RFQ/Enquiry
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ArcWear™ Nomex® IIIA Fleece Size Guide






The Nomex® IIIA Fleece Jacket/Liner is manufactured from 100% double knapped Nomex® IIIA knit. It has the versatility to be worn as a stand-alone Jacket or to be incorporated as a removable liner for our ArcWear™ Omega FR™ 5000 Series and MP3 3000 Series Jackets. Designed with comfort in mind, this electric arc and flash fire resistant fleece maintains a level of safety consistent with high performance FR clothing programs. Features include a zipper front, elastic waist and sleeve cuffs and pockets.

Item Information

Specifications (MOQ 5 Units Each Style)


About Nomex® IIIA

Type 462 staple of Nomex® is a blend of Nomex® (93%), Kevlar® brand fibres (5%) and P-140 (2%), a proprietary static dissipative fibre. When converted to fabric it is known commercially as Nomex® IIIA and is used for thermal protective apparel. It offers all the features of Type 455 staple (Nomex® III) plus a higher level of static dissipation in fabric form. The P-140 fibre dissipates static generated from fabric-to-fabric and fabric-to-surface rubbing, minimises the contribution of clothing to static hazards and reduces apparent electric filed strength and nuisance static. The staple is dye mergeable and can be package dyed as yarn for use in knit goods or sewing threads, or piece dyed as baric for civilian protective apparel. Except for the static dissipative properties of Nomex® IIIA, all other properties are essentially the same for Nomex® III.

About Nomex® Fibre

Nomex® is a family of aromatic polyamide (aramid) fibres. This family consists of staple fibres, continuous filament yarns, paper and spunlaced fabrics. Uses for staple, yarn and spunlaced fabrics include apparel fabrics to protect against flash fire and electric arc exposure; firefighter garments; fabrics and spun yarns for filtration applications; insulation in fire resistant thermal protective apparel; rubber reinforcement; and in transportation textiles such as airline carpeting. Some uses for paper product include insulation in electric motors and transformers, wire wrapping and honeycombed strength members in many aircraft. Nomex® brand fibres are inherently flame resistant: the flame resistance is a polymer property and does not diminish with the life of the fibre. The fibre's low stiffness and high elongation give it textile-like characteristics, which allow processing on conventional textile equipment. Nomex® meta-aramid, poly (meta-phenyleneisophthalamide), is prepared from meta-phenylenediamine and isophthaloyl chloride in an amide solvent. It is a long chain polyamide in which at least 85% of the amide linkages are attached directly to two aromatic rings. The meta oriented phenylene forms bends in the polymer chain, reducing chain rigidity as compared to the para orientation in the chemically similar Kevlar® chain. This flexible polymer chain gives Nomex® more textile-like qualities while retaining high temperature properties similar to Kevlar®.