Flamestat Woolpower® Socks 9193 FSOH Wool socks with inherent flame protection. Technique Insulating wool / Feet and legs in terry knit / Complies with EN ISO 14116 Index 3 and 1149-5 / OEKO-TEX® certified. Colour: Anthracite grey (F942) Material: 60% merino wool, 25% aramid, 11% polyamide, 2% antistatic fibre, 2% elastane. Inherent flame protection. Sizes: 36-39, 40-44, 45-48.