The Men’s Lightweight Nomex® FR Water Repellent Deluxe Insulated Bib Overall (BNNT) delivers high-level protection and comfort in cold, hazardous work environments. Designed as a true triple-threat solution, this insulated bib overall combines CAT 4 arc-rated protection, enhanced visibility striping, and water-repellent performance—without adding unnecessary bulk. The lightweight Nomex® IIIA shell, paired with a high-performance aramid insulation package, helps retain warmth while maintaining mobility. Built for demanding conditions, this bib overall is designed to be worn over other clothing and work boots, providing dependable protection against arc flash and flash fire hazards.

Key Features

Lightweight Nomex® IIIA shell: 6 oz (205 g/m²) flame-resistant fabric with water-repellent finish for cold and wet conditions.
High-performance insulation package: 13.5 oz (458 g/m²) aramid insulation with wind barrier helps retain warmth without excess bulk.
CAT 4 arc-rated protection: EBT arc rating of 59 supports high-risk electrical applications.
Enhanced visibility striping: Improves worker visibility in low-light and winter environments.
Full ankle-to-hip access zippers: Nomex® taped brass zippers with concealed closure allow easy on/off over work boots.
Reinforced durability: Double knee construction enhances resistance in high-wear areas.
Comfort-adjustable fit: Elasticized shoulder straps with non-conductive adjustable hardware support all-day comfort.

Intended Use

This insulated FR bib overall is intended for workers exposed to arc flash and flash fire hazards in cold or wet environments. Its CAT 4 protection level, insulation, and water-repellent design make it well suited for high-risk outdoor and industrial applications where warmth, visibility, and compliance are critical.

Electrical and utility workers
Oil & gas and petrochemical operations
Industrial maintenance in cold environments
Construction and infrastructure work during winter conditions
Tasks requiring insulated, arc-rated outerwear worn over base layers

Product Specifications

Manufacturer Code: BNNT
Product Type: Insulated flame-resistant bib overall
Brand: Bulwark®
Collection: Nomex
Shell Fabric: Flame-resistant Nomex® IIIA, water repellent
Shell Weight: 6 oz (205 g/m²)
Shell Blend: 93% Nomex® aramid / 5% Kevlar® aramid / 2% other fiber
Lining: 100% meta-aramid
Insulation Package: 100% aramid with wind barrier, 13.5 oz (458 g/m²)
Closure: Full ankle-to-hip Nomex® taped brass zippers with concealed closure
Primary Closure Type: Concealed zipper
Pockets: Five large patch pockets and hip pocket with closure
Reinforcement: Double knees
Shoulder Straps: Elasticized with non-conductive adjustable hardware
Fit: Designed to be worn over other clothing; fits over work boots
Gender: Unisex
Country of Origin: Imported; fabric made in USA
Care Instructions: Industrial laundry (light soil), home wash

Certifications and Standards

NFPA 2112 – Compliant (2023)
NFPA 70E
ASTM F1506
Arc Rating (EBT): 59 cal/cm²
Category 4 Protection
Hazard Protection: Arc flash, flash fire