Portwest FR Stretch Work Trousers FR404

Portwest FR Stretch Work Trousers FR404

When you're working in environments where electrical hazards are a genuine concern, you need stretch work trousers that deliver genuine protection without compromising on comfort. The Portwest FR Stretch Work Trousers FR404 are engineered precisely for this. These flame retardant work pants combine soft, flexible fabric with the security of serious safety standards, meaning you can move freely whilst staying protected against thermal hazards from electrical arcs.

Built from a responsive stretch blend, these long work trousers feature a slim fit cut that sits neatly without restricting movement. The garment wash treatment keeps the fabric supple and pleasant against your skin, whilst the extendable hem gives you flexibility in fit across different sizes. Practical storage is handled by four accessible pockets plus back pockets, so you've got proper space for the bits you need throughout your shift.

Key Features

• Flame retardant protection against electrical arc hazards
• Soft stretch fabric with garment wash finish for comfort
• Slim fit design maintains neat appearance and freedom of movement
• Four storage pockets plus back pockets for practical functionality
• Adjustable leg length offering up to 5cm extra hem extension

Recommendations from our Unishore Expert

These stretch work trousers have been developed with professionals like you in mind. The fabric composition delivers a genuinely soft feel thanks to the finishing process, so you won't experience that stiff, uncomfortable sensation some protective workwear can have. The stretch properties mean you'll get natural movement whether you're climbing, bending or working in tight spaces, which matters when you're putting in a full shift.

The slim fit cut is worth highlighting here because it works hard for you. It gives a professional appearance on site, and the tailored fit means you're not dealing with excess fabric bunching around the ankles or knees. The adjustable hem is particularly useful if you're between sizes or need to account for different boot heights across various roles.

Product Features

• Material - Cotton blend with Bizflame 88/12 stretch
• Fit - Slim fit
• Pockets - Four storage pockets plus two back pockets
• Leg Length - Long leg length with 5cm adjustable hem extension
• Item Number - FR404

Standards and Safety

• Protection against surface flame spread and edge ignition according to EN ISO 11612 A1 and A2 classifications
• Convection heat protection certified to EN ISO 11612 B1
• Radiation heat protection certified to EN ISO 11612 C1
• Contact heat protection certified to EN ISO 11612 F1
• Meets ASTM F1506 requirements for arc flash protective clothing
• Complies with NFPA 2112 standards for flash fire protective apparel
• Meets NFPA 70E guidance for electrical arc flash hazards
• ATPV rating of 12 cal/cm² with 80.6 percent Heat Attenuation Factor per ASTM F1959/F1959M-14e1
• CE marked and UKCA marked for regulatory compliance

OEKO-TEX® STANDARD 100 CERTIFIED

OEKO-TEX® Standard 100 is a globally recognised health certification that confirms that every component of our clothing, from the fabric to the buttons and zips, has been tested and is free from harmful substances. This certification guarantees that our clothing is safe for your skin and health.