Merino wool feels soft against skin and maintains a comfortable temperature without itchiness of o r types of wool * Fortified heel and toe pockets offer durability in high stress areas; Seamless toe closure helps eliminate irritation to toes * Stay-put leg stays up comfortably; Cushioned interior adds comfort all around your feet * Helps relieve Cold Feet, Foot Perspiration, Hyperhidrosis * 67% Merino wool, 21% stretch nylon, 7% elastic, 5% acrylic; Made in USA