Trousers with outstanding strength to weight ratio. The fabric is inherently flame retardant, which means that the flame retardant properties are naturally present in its fibres. The trousers have CORDURA®/Kevlar®/Protal® reinforced panels on the knees. They feature many smart pocket solutions designed to meet certification standards. Pockets subject to excessive wear are reinforced with double thickness to extend their life. The trousers have nail pockets, an open ruler pocket and flapless rear pockets. Ripstop fabric delivers top-class non-rip durability. The product is certified according to EN 1149-5, EN ISO 20471 Class 2, EN ISO 11612 A1, A2, B1, C1, F1, IEC 61482-2 Class 1, ATPV: 11. ·9 cal/cm², HAF: 79. ·3%, LOI: 29. ·6%. Achieves Class 3 certification when combined with jacket 4089 under the EN ISO 20471 standard. Tested to meet the EN ISO 15797 requirements for industrial laundering