The Kari Traa Rusa Sock is a pair of warm, wool-blend, Jacquard-knit, crew-length sports socks that come in two contrast-colour Nordic-inspired designs. They have arch support and a reinforced heel and toe for comfort and durability in the cold of winter. Terry-lined for super-cosy warmth, they have a flat toe seam to cut out chafing and ribbed cuff for a snug fit.