Portwest FR404 Flame Retardant Stretch Trousers

These slim-fit stretch trousers from Portwest are designed for professionals who face the thermal hazards of electric arc work. Built with Bizflame 88/12 Stretch fabric, they blend защиту with comfort for electricians, panel technicians, and other on-site crews needing reliable arc and heat protection.

• Fabric & Safety: Bizflame 88/12 Stretch shell (86% cotton, 12% nylon, 2% elastane) with a 350 g/m2 weight; provides protection against radiant, convective and contact heat, plus electric arc hazard; CE certified and UKCA marked.
• Protection Coverage: Designed to shield against the thermal effects of an electric arc while maintaining range of motion for overhead work and kneeling.
• Comfort & Movement: Garment-washed finish delivers a soft, comfortable feel; stretch yarns and Flexi-fit construction reduce restriction during dynamic tasks.
• Fit & Adjustability: Slim fit that sits close to the body without constraining movement; adjustable hem converts from regular to long leg to match boot height and preferences.
• Storage: Four pockets in total with two back patch pockets, providing secure space for essential tools and accessories.
• Care & Durability: Durable construction paired with a garment-wash finish for everyday wear and easier maintenance on busy job sites.
• Certification: Fully CE certified with UKCA marking, confirming compliance with modern safety standards for flame retardant workwear.

These FR404 trousers are tailored for the real-world needs of electrical teams and industrial workers. The combination of flame retardant protection, arc resistance, and fabric stretch translates to fewer adjustments, greater comfort during long shifts, and reliable storage for tools. Ideal for electrical installations, panel maintenance, on-site service calls, and any job where safety and mobility matter. For best results, pair with compatible flame-retardant tops and ensure the waistband size accommodates a secure, comfortable fit over work boots.