The Portwest FR404 Bizflame 88/12 Stretch FR Trousers are designed for men working where there is a risk of heat, flame or the thermal hazard of an electric arc. The cotton-rich fabric includes elastane for stretch, so you can kneel, climb and bend more freely through the shift.
A garment wash finish softens the fabric from the first wear. The hem can be let down from regular to long leg, and four pockets give you space for everyday essentials.
Key features
- Protection against radiant, convective and contact heat
- Stretch fabric with flexible construction gives you more freedom of movement
- Garment wash treatment makes the fabric soft from new
- Adjustable hem lets you set the leg length from regular to long
- Four pockets in total for tools and personal items
- Two back patch pockets for easy-access storage
Materials and performance
Bizflame 88/12 Stretch: 86% cotton, 12% polyamide, 2% elastane, 350g.
Standards and protection
Certified to EN ISO 11612 (A1 + A2, B1, C1, F1), covering limited flame spread, convective heat, radiant heat and contact heat. UKCA marked.
Fit and sizing
Slim fit. See our Portwest Sizing Guide for detailed information.
Care
- Machine wash at 40°C
- Do not bleach
- Tumble dry at low temperature
- Line dry in the shade
- 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 FR404 Bizflame 88/12 Stretch FR Trousers, please contact us.



























