Portwest PW3 Modaflame Knit HVO Class 1 FR Sweatshirt FR737

Portwest PW3 Modaflame Knit HVO Class 1 FR Sweatshirt

When you're working in environments where heat exposure is a genuine concern, this high visibility sweater delivers the protection and comfort you need without compromise. The Portwest PW3 Modaflame Knit HVO Class 1 FR Sweatshirt combines inherently flame retardant properties with a thoughtful design that keeps you safe and comfortable throughout your shift.

Built from a specialist blend featuring modacrylic, polyester, cotton, aramid and carbon fibres, this multinorm sweater protects against radiant, convective and contact heat. The fabric weighs 300g, offering substantial protection whilst remaining practical for daily wear. Class 1 high visibility ensures you're seen on site, whilst the round neckline, ribbed collar and cuffs provide a secure, comfortable fit. Heat-applied segmented reflective striping enhances visibility in low-light conditions, and the knitted hem sits perfectly against your body. UV protection rated at 40 UPF blocks 98% of harmful rays, making this suitable for outdoor and industrial settings alike. The fully elasticated waistband adapts to your movement, and the neck protector adds an extra layer of consideration for your safety.

Key Features

• Inherently flame retardant properties that won't diminish
• Protects against radiant, convective and contact heat
• Class 1 high visibility with heat-applied reflective striping
• 40 UPF rated fabric blocks 98% of UV rays
• Antistatic and ATEX compliant for hazardous environments

Recommendations from our Unishore Expert

This sweater is engineered for professionals who refuse to sacrifice comfort for safety. The high cotton content within the specialist fibre blend creates a balance between durability and breathability, so you're not overheating whilst protected. The ribbed cuffs and collar work together to keep heat where it belongs-away from your skin-without feeling restrictive.

We'd recommend this for roles in welding, electrical work, oil and gas operations, or any environment where thermal hazards are present. The long sleeves provide full arm coverage, and the regular fit works well over standard base layers. The antistatistic properties mean you're covered in ATEX-designated spaces, offering genuine peace of mind on complex sites.

Product Features

• Material - Modaflame Knit HVO: 45% Modacrylic, 25% Polyester, 23% Cotton, 6% Aramid, 1% Carbon Fibre
• Fit - Regular
• Sleeve Length - Long
• Length - Normal
• Article Number - FR737

Standards and Safety

• Flame retardant protection against surface, convection, radiation and contact heat according to EN 11612 (A1 B1 C1 F1)
• Class 1 high visibility compliance with EN 20471
• Electric arc protection rated Class APC 1 with ATPV 8.9 CAL/CM² according to IEC 61482
• Antistatic properties certified to EN 1149-5
• Suitable for use in ATEX-designated environments
• CE certified CAT III