Mens Wool Blend Long Length Argyle Socks (Pack Of 3) Acrylic, Polyester, Wool Great quality mens work socks. Comfortable fit. Made with 35% Acrylic, 35% Polyester, 20% Wool and 10% Mixed Fibres. Machine washable. These socks have a light top meaning no more pinching or ring marks, a fine toe seam to reduce irritation, guaranteed to stay up all day and they have a wool blend for comfort and winter warmth.