Dickies Men's 2 Pack Steel Toe Moisture Control Crew Socks 62% Cotton, 26% Polypropylene, 10% Nylon, 1% Polyester, 1% Lycra Spandex Imported Machine Wash Heavier Weight Nylon-Reinforced Reciprocated Heel and Toe for Superior Fit and Comfort Provide Phenomenal Steel Toe Protection and Durability. Wicking, Moisture Management Fibers Keep Feet Dry Ventilation Channels Engineered for Air Circulation and Moisture Control Arch Compression Provides Added Support and Stability Spandex for Superior Fit and Non-Binding Stay-Up Top