Product Details + 53% UltraSpun® Polyester/45% Nylon/2% Spandex URfit® System provides arch support and memory knit construction Wick Dry technology keeps feet dry Fully cushioned sole absorbs shocks and insulates Extra cushion around back of heel and over toe for steel-toe boot protection UltraSpun® polyester lasts up to 28X longer than ordinary cotton Smooth, flat comfort toe seamVendor Style Number: