The Portwest FR448 Bizflame Work FR Trousers are multi-norm work trousers for people exposed to heat, flame, welding spatter, molten metal splash and electric arc. The cotton-rich fabric includes carbon fibre and is suitable for use in ATEX environments.
Eight pockets and a hammer loop keep tools and essentials close to hand. Reinforced seams add durability, and the leg length can be extended as you need it.
Key features
- Reinforced seams add strength and extend the working life of the trousers
- Concealed fly with a strong brass zip
- Elasticated back waist helps keep the trousers in place as you move
- Two covered side pockets, plus two back pockets with hook and loop closure to keep contents secure
- Cargo pocket, rule pocket and hammer loop keep tools within easy reach
- Two-tier knee pad pockets with two positioning options
- Extendable leg length from 31″ to 33″ lets you adjust the length as needed
- UPF 40+ rated fabric blocks 98% of UV rays when working outdoors
- External standards label lets you check protection levels at a glance
Materials and performance
Bizflame Work fabric: 99% cotton, 1% carbon fibre, 350g.
Standards and protection
Certified to EN ISO 11612 (A1+A2, B1, C1, E3, F1), EN ISO 11611 Class 2 (A1+A2) and EN 1149-5. Arc protection is certified to EN 61482-2 EN 61482-1-1 (ELIM 16 CAL/CM² ATPV 19 CAL/CM²) and EN 61482-2 EN 61482-1-2 APC 1.
Fit and sizing
Regular fit. See our Portwest Sizing Guide for detailed information.
Knee pad positioning
The two-tier knee pad pockets give you two height options for knee pads. Choose the position that best sits over your knee when kneeling.
Care
- Machine wash at 60°C
- Do not bleach
- Tumble dry at low temperature
- Iron at a medium temperature (max 150°C)
- Do not dry clean
Add your logo
If you’d like to add your logo to the Portwest FR448 Bizflame Work FR Trousers, please contact us.
































