Sealtex Flame Resistant Hi Vis Trousers FR43 VRF vs Multi Split System: Which One is Right for Your Home?. Sealtex Flame Resistant Hi Vis Trousers The Portwest Sealtex Flame Resistant Hi Vis Trousers FR43 are designed for professionals who require safety, durability, and comfort in hazardous environments. Constructed from high quality flame resistant fabric, these trousers offer waterproof, windproof, and high visibility protection, ideal for outdoor and high risk work settings such as construction, utilities, rail, and emergency response. A standout feature of the FR43 trousers is the advanced waterproof technology. The welded seams prevent water penetration, keeping the wearer dry and comfortable. The heat applied reflective tape enhances visibility in low light environments, maximising safety. The trousers feature a fully elasticated waistband, allowing for a flexible, secure fit. The lightweight, durable material ensures wearers can work efficiently without feeling weighed down, whilst the stud adjustable hems provide a custom fit to accommodate different footwear. The wipe clean finish ensures the trousers remain in top condition, even after repeated use. Additionally, the fabrics stretchy yet tough construction provides excellent freedom of movement. Certified to CE CAT III standards, these trousers meet rigorous safety requirements, a trusted choice for professionals who need high performance protective workwear. When paired with other garments in the Portwest Sealtex Flame Resistant range, they provide full body protection against the elements and workplace hazards. For those who work in challenging and high risk environments, the Portwest Sealtex Flame Resistant Hi Vis Trousers FR43 deliver a perfect balance of safety, comfort, and durability, ensuring you remain protected, visible, and ready for anything. Safety Standards ANSI ISEA 107 SUPPLEMENTAL CLASS E EN ISO 14116 Index 1 EN 1149 5 EN 343: 2019 Class 3: 1 X EN 13034 Type 6 EN ISO 20471 Class 1 Fabric Sealtex Flame: 100% Polyester, FR & Antistatic, PU Coated 260g Washing Instructions Machine washable at 40 degrees.