Mens Striped Wool Heavy Knit Hiking/Walking Boot Socks (Pack Of 3) Wool, Acrylic, Polyamide Premium quality mens socks. Perfect for wearing with boots. Heavy Gauge boot socks with wool for extra warmth. Comfortable fit. Fibre: 35% Wool, 31% Acrylic, 23% Polyester, 4% Polyamide, 4% Cotton and 3% Viscose.