Portwest FR401 Lightweight Stretch Panelled FR Trousers
FR401 provides a lightweight option within Portwest’s flame-resistant workwear range. Its stretch panels and accessible storage suit duties that involve repeated changes of position, while protective suitability depends on the garment’s markings and the clothing system selected for the job.
Key Features
- Flame-resistant fabric with stretch panels.
- Crotch gusset and adjustable leg length.
- Thigh storage, rear pockets and a rule pocket.
- Two-position knee pad pockets.
- Elasticated waist sections for fit adjustment.
- Available in navy and orange.
Technical Specifications
| Brand and model |
Portwest FR401 |
| Garment |
Lightweight stretch panelled flame-resistant work trousers |
| Sizes listed |
S, M, L, XL, XXL and 3XL |
| Heat and flame |
EN ISO 11612: A1+A2, B1, C1, E2, F1 |
| Welding |
EN ISO 11611 Class 1: A1+A2 |
| Electrostatic properties |
EN 1149-5 |
| Electric arc test |
IEC 61482-2 / IEC 61482-1-1: ELIM 9 cal/cm² |
Ideal Applications
For industrial and maintenance duties where the listed protective performance meets the assessed hazards. Welding suitability depends on the task and Class 1 requirements; select the complete protective outfit using the employer’s assessment.
Use and Care
Follow the garment label and Portwest user instructions for laundering and use. Inspect the fabric, seams and fastenings, and replace damaged garments as required by your workplace procedure. Keep pockets free of unnecessary items and use suitable knee pads where the task requires them.
Frequently Asked Questions
Which colours and sizes are listed?
Navy and orange are offered, with size options from S to 3XL.
Can the leg length be adjusted?
Yes. FR401 includes an adjustable leg length to help set the fit.
Do flame-resistant trousers replace other PPE?
No. Select the garment as part of the protective clothing and equipment required for the assessed task.
Does reflective trim make these hi-vis trousers?
Do not treat reflective trim alone as a high-visibility classification. Confirm the required EN ISO 20471 marking when hi-vis clothing is needed.
Explore more clothing and PPE or contact Astral Hygiene for help choosing your workwear.
