The Wool Heavyweight Crew Work Sock - 2 Pack is built for cold, tough conditions. Its warm wool and acrylic blend provides insulation, while moisture-wicking fibers help keep feet dry and comfortable. Made for steel-toe boots and long days on your feet. Made for steel-toe boots Moisture-wicking Warm wool & acrylic blend Memory-knit for lasting fit Reinforced toe & heel Full cushioning Flat toe seam 44% acrylic, 36% wool, 19% nylon, 1% spandex Style #6604