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Portwest  ·  SKU: 262291

Portwest FR434 Waterproof Bizflame Rain+ Hi-Vis Multi-Norm Contrast FR Winter Trousers

Portwest FR434 waterproof FR trousers - EN 343 Class 4 waterproof rating, EN 342 thermal rated, multi-norm certified for hi-vis, welding and rail work.

£88.33 each, ex VAT
£106.00 inc VAT
Ships in 1 to 2 working days

Colour: Orange/Navy
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  • Made in the UK
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Waterproof Waterproof
Anti Static Anti Static
Contrast Colour Contrast Colour
Flame Retardant Flame Retardant
Provides Warmth Provides Warmth
Reflective Reflective
Stretch Stretch
EN 1149 EN 1149
EN 13034 EN 13034
EN 342 EN 342
EN 343 EN 343
EN ISO 11611 EN ISO 11611
EN ISO 20471 EN ISO 20471
IEC 61482 IEC 61482
RIS 3279 TOM RIS 3279 TOM
Hi-Vis Class: Class 2
Waterproof Rating: Class 4 (water resistance: 30,000mm)
Thermal Rating: High Insulation (Very Cold Conditions)
Logo Printing Available: Yes
Embroidery Available: Yes
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Why it works

Waterproof, warm and multi-norm certified

Waterproof protection

EN 343 Class 4 rated fabric resists water penetration to 30,000mm, keeping the wearer dry in heavy rain.

Multi-norm certified

Certified across eight European standards covering waterproofing, cold protection, chemical splash, antistatic, welding and hi-vis.

Class 2 high visibility

EN ISO 20471 Class 2 reflective tape keeps the wearer visible in low light and poor weather.

Built for warmth and movement

Fully lined and padded construction traps heat, with an elasticated waist and side zip legs for easy on/off.

Anti-static and ATEX suitable

Non-magnetic, anti-static construction suits ATEX-classified and other sensitive sites.
Overview

Portwest FR434 Waterproof Bizflame Rain+ Hi-Vis Multi-Norm Contrast FR Winter Trousers - Overview

The Portwest FR434 Waterproof Bizflame Rain+ Hi-Vis Multi-Norm Contrast FR Winter Trousers are built for outdoor work in cold, wet conditions where flame resistance and high visibility also matter. Made across eight European standards, they combine waterproofing, thermal insulation, hi-vis and multi-hazard certification in one garment.
8standards
Certified EN/IEC norms
4class
EN 343 waterproof rating
2class
EN ISO 20471 hi-vis rating
30,000mm
Water resistance
Dimensions
SizesS, M, L, XL, XXL, XXXL
Details
ColoursOrange/Navy, Yellow/Navy
CollectionBizflame Rain+ HV
Hi-vis classEN ISO 20471 Class 2
Waterproof ratingEN 343 Class 4 (water resistance: 30,000mm)
Thermal ratingHigh insulation for very cold conditions (EN 342)
StandardsEN 1149, EN 13034, EN ISO 11611, IEC 61482, RIS 3279 TOM
PPE categoryCE-CAT III
FitUnisex
CustomisationEmbroidery and logo printing available

Frequently asked questions

Are these trousers actually waterproof?

Yes. They are rated to EN 343 Class 4, the highest water resistance class, with taped seams and a flame-resistant treated fabric that keeps water out to 30,000mm.

Will they keep me warm in winter?

Yes. They are fully lined and padded with a high-insulation thermal rating (EN 342) built for very cold conditions.

What does multi-norm certification mean on these trousers?

They carry eight separate European standards in one garment - waterproofing, cold protection, chemical splash, antistatic, welding, hi-vis and rail hi-vis - rather than needing separate garments per hazard.

Are they suitable for rail trackside work?

Yes, certified to RIS-3279-TOM, the rail industry standard for orange hi-vis.

What colours and sizes are available?

Orange/Navy and Yellow/Navy, in sizes S to XXXL.

Can I get these embroidered with a company logo?

Yes, embroidery and logo printing are both available to order - ask about trade-account pricing for bulk runs.

Are they suitable for ATEX or other non-magnetic-required sites?

Yes, the anti-static, non-magnetic construction suits ATEX-classified environments.

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