Portwest FR426 PW3 Modaflame Rain+ Hi-Vis Multi-Norm FR Winter Trousers – Product Description

The Portwest FR426 PW3 Modaflame Rain+ Hi-Vis Multi-Norm FR Winter Trousers are engineered for extreme weather and high-risk environments, offering advanced protection against heat, flame, rain, chemicals, and electric arc hazards. Built from Modaflame Rain+ fabric with a rugged 7mm ripstop construction, these trousers deliver exceptional durability while maintaining comfort and mobility.

Fully lined with flame-resistant cotton and padded for insulation, the FR426 provides reliable warmth in cold working conditions. The detachable braces add versatility, allowing the wearer to convert between a bib-style fit and standard trousers depending on the task. Bottom-loading knee pad pockets, zipped side leg openings and multiple storage options make these trousers ideal for demanding jobs where ease of access and flexibility are essential.

Certified to a wide range of EN standards—including Class 2 Hi-Vis, arc flash protection and chemical resistance—these winter FR trousers are suitable for ATEX environments, utilities, offshore, petrochemical, rail and heavy industry workplaces. Designed for safety, functionality and long-lasting wear, the FR426 is a premium choice for multi-norm protection in harsh winter conditions.

Key Features

• Inherent flame resistance that does not diminish with washing
• Protection against radiant, convective and contact heat
• Fully padded and FR cotton-lined for warmth and comfort
• Modaflame Rain+ waterproof, chemical-resistant ripstop fabric
• Segmented reflective tape for high visibility
• Detachable braces for flexible wear
• Bottom-loading knee pad pockets
• Easy access cargo, rule and side pockets
• Side zip leg opening for effortless donning over boots
• Extendable leg length 31" to 33"
• Suitable for ATEX environments
• CE certified, CE-CAT III

Fabric Composition

Shell: Modaflame Rain+ HV 60% polyester, 21% modacrylic, 18% cotton, 1% carbon fibre, 7mm ripstop PU coated 270g
Lining: 100% cotton flame resistant lining 170g
Filling: 100% polyester flame resistant wadding 150g

Certifications

EN ISO 11612 A1+A2 B1 C1 F1
EN ISO 11611 Class 1 A1+A2
EN 1149-5
IEC 61482-2 / IEC 61482-1-1 ELIM 32 cal/cm² ATPV 37 cal/cm²
IEC 61482-2 / IEC 61482-1-2 APC 2
EN 13034 Type 6
EN ISO 20471 Class 2
RIS 3279-TOM (Orange)
EN 343 Class 4:1 X
EN 342 0.337 (m²·K/W) Class 2 X