Flame retardant and anti-static sock. Certified according to EN ISO 14116 index 2 and EN 1149-5. CertificationsEN 1149-5 EN ISO 14116 index 2 Material Composition49% modacrylic, 29% cotton, 19% polyamide, 2% antistatic, 1% elastane, terry knit, flameretardant, antistatic FunctionalityAnkle length sock Washing Instructions40 °C. No bleaching. No dry-cleaning. No ironing. No tumble-drying. Ideally suited for the following professionsIndustrial Worker,Road Worker,Construction Worker,Electrician,Welder Key Product FeaturesAnti-Static, Flame Retardant, Multi-Protective We deliver Blaklader Workwear 2227 Flame Retardant Socks worldwide.We specialise in shipping almost anywhere in the world securely at competitive prices - across UK, US, Canada, Ireland, New Zealand, Europe - securely and fast at competitive prices