PORTWEST FR404 FR Stretch Trousers

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PORTWEST FR404 – FR Stretch Trousers

The Portwest FR404 FR Stretch Trousers are a modern, slim-fit flame-resistant solution that balances protection with flexibility and comfort. Made from a lightweight Bizflame Stretch fabric blend (98% cotton, 2% elastane – 255g), they provide inherent FR and anti-static protection while allowing freedom of movement for physically demanding tasks.

Certified to EN ISO 11612 (Heat & Flame), EN ISO 11611 (Welding), and EN 1149 (Anti-Static), the FR404 delivers multi-standard compliance for welders, utilities, fabrication, and heavy industry. Featuring ergonomic shaping, knee pad pockets, reinforced seams, and multiple storage options, these trousers are both protective and practical for everyday use.


✅ Key Features & Benefits

  • Lightweight Bizflame Stretch fabric (255g) – FR cotton with elastane for flexibility & comfort

  • EN ISO 11612 certified – protection against heat & flame hazards

  • EN ISO 11611 certified – welding safety compliance

  • EN 1149 certified – anti-static protection

  • Slim-fit ergonomic design – improved comfort & professional appearance

  • Knee pad pockets – compatible with standard knee pads for extra safety

  • Multiple storage pockets – secure tool & accessory storage

  • Reinforced seams & triple stitching – durability in high-stress areas

  • Lightweight & breathable – ideal for long shifts in hot or industrial environments


⚠️ Important Information

  • Certified to EN ISO 11612, EN ISO 11611, EN 1149

  • Machine washable (check garment care instructions)

  • Suitable for welding, fabrication, utilities & heavy industry

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