Details

Phenix First Due Structural Fire Helmet

Lightweight protection. Proven balance. Built for the first-in crew.

The Phenix First Due Structural Fire Helmet is engineered to deliver dependable head protection without sacrificing comfort or wearability. Designed for structural firefighting, the First Due continues Phenix’s long-standing reputation for lightweight construction, balanced performance, and all-day comfort on the fireground.

Built with a high-temperature thermoplastic shell, the First Due provides strong thermal and impact resistance while maintaining a low overall weight. At just 36.5 ounces, it is one of the lightest NFPA 1971-compliant structural helmets available—helping reduce neck and upper back fatigue during extended incidents.

Its low center of gravity and central balance keep the helmet stable and secure, minimizing movement and strain while working interior operations, ventilation, or overhaul. The helmet’s aerodynamic design also helps prevent lift when exposed to high wind or speed conditions, maintaining proper positioning even at speeds up to 70 miles per hour.

The First Due features Phenix’s exclusive suspension liner system, available with either a nape strap or ratchet, offering a secure, customizable fit that stays comfortable through long shifts and demanding calls.

Key Features

High-temperature thermoplastic shell for durable structural protection
Closed-cell energy impact cap for enhanced impact absorption
Exclusive Phenix suspension liner system with nape strap or ratchet
Adjustable fit range from 6 1/2" to 7 3/4"
Extra small and extra large liners available upon request
Lightweight design with low center of gravity for reduced fatigue
Total helmet weight: 36.5 oz

Comfort and Retention Systems

Designed with firefighter comfort and long-term wear in mind, the First Due includes features that support extended use without compromising protection.

Nomex and fire-retardant cotton 8" detachable earlaps for ear and neck protection
Nomex webbing quick-release chinstrap with Postman’s slide for secure retention
Designed to fit leather fronts up to 3.75"

Note: Hardware to attach a leather front is not included.

Integrated Eye Protection Options

The First Due supports multiple NFPA-compliant goggle options to meet department preferences and operational needs.

NFPA-compliant goggles (ESS FirePro or ATAC with retainers or long strap)
Attachment kit for goggle retainers (standard screw knob or ESS Snap-On/Off)
Four 3M lime-yellow reflective 1" x 4" trim strips for increased visibility

Standards and Compliance

Trusted by departments for more than 44 years, the Phenix First Due Structural Fire Helmet meets or exceeds current safety standards, ensuring reliable protection on every call.