Made from Merino wool, these socks provide soft comfort and thermoregulation to keep your little one warm when it's cold and cool when it's hot. With a great fit, support and wicking they keep little feet dry & comfy. Memory knit & fully thermalined construction. Smooth, flat toe seam. Content: 40% Merino wool, 40% acrylic, 18% nylon & 2% spandex. Mediumweight.