These Explorer Tough Work socks are made from a Cotton Blend and have durable dual layer construction and a cushioned sole to provide comfort. They also have arch support for a better fit. Tough work needs a tough sock and this Crew sock is perfect for the job. With a dual layer cotton inner and nylon outer for durability, it features a reflective yarn in the welt. With arch support and elastane for the ultimate fit, it offers a cushioned foot for reducing impact and comfort. #Material:Nylon / Cotton / Elastane.