Portwest PW3 Modaflame Work HVO Class 1 FR Work Trousers FR451

Portwest PW3 Modaflame Work High Visibility Class 1 FR Work Trousers

When you're working in environments where flame protection matters, you need work trousers that deliver on both safety and comfort. The Portwest PW3 Modaflame Work HVO Class 1 FR Work Trousers FR451 are engineered for professionals who refuse to compromise. Built from inherent Modaflame fabric combined with cotton and carbon fibre, these multinorm work pants provide reliable flame retardant qualities that won't diminish over time. The reinforced FR fabric sits strategically at high wear areas, whilst triple stitching throughout ensures these long work trousers withstand the demands of your job. With eight storage pockets including knee pockets with top access, a thigh pocket with easy closure, and a thumb pocket, you'll keep your essentials secure. Heat-applied segmented reflective striping and reflective piping boost your visibility on site, whilst the UPF 40+ fabric blocks 98 per cent of UV radiation. An elastic waistband and innovative stretch panels deliver all-day comfort without compromise.

Key Features

• Inherently flame retardant qualities remain constant throughout the garment's life
• Triple stitched seams and reinforced high wear areas for maximum durability
• Eight storage pockets plus knee pockets with top opening access
• Extendable hem accommodates leg lengths from 31" to 33"
• Heat-applied reflective striping for enhanced site visibility

Recommendations from our Unishore Expert

These multinorm work trousers tick every box if you're operating in high-risk environments. The inherent flame retardant properties mean you're protected from day one without reliance on surface treatments that fade with washing. We particularly rate the stretch panels positioned at stress points; they move with your body rather than against it, which makes a genuine difference across a full shift. The combination of robust reinforced areas at knees and seat with strategically placed pockets means you're looking at work trousers built for real working conditions. The reflective elements are well-positioned for visibility without being overdone, and the adjustable waistband ensures the fit stays comfortable throughout your working day. If you're regularly exposed to flame hazards, electrical arc risks, or chemical splashes, these deliver comprehensive protection according to strict safety standards.

Product Features

• Material - 60% Modacrylic, 39% Cotton, 1% Carbon Fibre, 280g
• Fit - Regular
• Pockets - Thumb pocket, hand pockets, thigh pocket with closure
• Closure - Zip with covered closure
• Length - Normal
• Leg Length - Long leg length
• Article Number - FR451

Standards and Safety

• Flame retardant protection against heat and flames according to EN 11612 (A1+A2 B1 C1 F1)
• Limited protection during welding situations in accordance with EN 11611 Class 1
• High visibility Class 1 classification meets EN 20471 requirements for site safety
• Electric arc protection rated at Class APC 1 under IEC 61482-2 and IEC 61482-1-1 standards
• Antistatic performance safeguards against electrostatic discharge per EN 1149-5
• Protection against liquid chemical splashes per EN 13034 Type 6 classification
• ATEX suitable for use in designated explosive atmospheres (EDPP 137)