SK18 Extreme Cold Weather Sock | SK18BKR44-48 Black Polyolefin insulating material Antimicrobial and anti-odour properties Excellent moisture-wicking properties Retail tag which aids presentation for retail sales CE certified Sock height: 40cm Size: 44 - 48 Material: 40% Wool, 40% Acrylic, 20% Nylon Portwest Extreme Cold Weather Sock Size 44 -48 - Black | Sk18bkr44-48 Features Polyolefin insulating material Antimicrobial and anti-odour properties Excellent momoisture-wickingroperties Sock height 40cm CE certified Retail tag which aids presentation for retail sales