These medium weight mid-calf kids' Socks are made of merino wool that provide soft comfort and thermoregulation to keep your little one warm when it's cold and cool when it's hot. Great fit, support and moisture wicking technology. Proudly made in the USA, these children's winter socks feature memory-knit construction that will holds shape wash after wash, fully thermalined construction to absorb shocks and help insulate, a smooth and flat toe seam to add comfort and durability. Perfect cold weather socks for your children to make sure they stay warm and dry during any of their many activities!.