The Portwest SK22 Modaflame Knit FR Sock completes a flame resistant workwear outfit from the feet up. Its flame resistance is built into the fibres, so it stays with the sock through repeated washing.
Extra padding at the heel and toe adds cushioning for long shifts on your feet. A ribbed leg holds the sock in place, and a seamless toe gives a smooth, secure feel inside safety footwear.
Key features
- Inherent flame resistant fibres keep their protective qualities through washing
- Carbon fibre in the yarn gives anti-static properties
- Padded heel and toe box add cushioning and a softer feel underfoot
- Seamless toe reduces pressure points inside boots
- Ribbed leg grips gently and helps stop the sock slipping down
- Knit gauge 10 helps the sock hold its shape
- 25cm sock height
Materials and performance
Modaflame Knit: 50% Modacrylic, 16% Recycled Cotton, 14% Cotton, 18% Polyamide, 2% Carbon Fibre.
Standards and protection
Certified to EN ISO 14116 Index 3 for limited flame spread and EN 1149-3 for electrostatic properties.
Part of a flame resistant outfit
Wear these socks alongside your other flame resistant garments and safety footwear, so the protection extends to the ankles and lower legs.
Care
- Machine wash at 40°C
- Do not bleach
- Do not tumble dry
- Line dry
- Do not iron
- Do not dry clean





















