These PW3 Modaflame multi-norm trousers are built for work where several hazards meet, including heat and flame, electric arc, light chemical splash and low visibility. They are also suitable to be worn in an ATEX environment. The flame resistance is built into the fibres, so it stays with the garment through repeated washing.
Reinforced panels at high-wear points and triple-stitched seams help them last in demanding daily use. Stretch panels and a side elastic waist make bending, kneeling and climbing easier, while eight pockets keep your phone, keys and tools close at hand.
Key features
- Inherent flame resistant fabric keeps its protective qualities for the life of the trousers
- Reinforced panels in high-wear areas and triple-stitched seams for extra durability
- Stretch panelling in key movement areas gives flexibility when bending and kneeling
- Side elastic waist for a comfortable hold through the working day
- Heat-applied segmented reflective tape and reflective piping improve visibility in low light
- Top-loading knee pad pockets let you fit and remove knee pads quickly
- Eight pockets, including an easy-access multiway cargo thigh pocket, two back patch pockets and a rule pocket
- Extendable leg length from 31″ to 33″, UPF 40+ fabric that blocks 98% of UV rays, and non-magnetic, nickel- and ferrous-free components for metal detector friendly use
Materials and performance
Shell: Modaflame Work HVO, 61% Modacrylic, 18% Viscose, 15% Polyester, 5% Aramid, 1% Carbon Fibre, 300g. Contrast: Modaflame Work Stretch, 60% Modacrylic, 35% Cotton, 4% Elastane, 1% Carbon Fibre.
Standards and protection
Certified to EN ISO 11612 (A1+A2, B1, C1, F1), EN ISO 11611 Class 1 (A1+A2), EN 1149-5, EN 61482-2 EN 61482-1-1 (ELIM 6.4 cal/cm², EBT 6.8 cal/cm²), EN 61482-2 EN 61482-1-2 APC 1, EN 13034 Type PB [6] and EN ISO 20471 Class 2. The orange versions also meet RIS-3279-TOM Issue 2.
Fit and sizing
Regular fit. See our Portwest Sizing Guide for detailed information.
Knee protection
The knee pad pockets load from the top, so you can slide pads in and out without turning the trousers inside out. Pair them with compatible knee pads for regular kneeling work.
Care
- Machine wash at 40°C
- Do not bleach
- Tumble dry at low temperature
- Iron at a low temperature (max 110°C)
- Do not dry clean
Add your logo
If you’d like to add your logo to the Portwest FR414 PW3 Modaflame Work HVO Multi-Norm FR Trousers, please contact us.


































