Nylon^Wool Made in USA WARM INSULATION: Experience durability at its peak with the Smartwool Kids?? Striped Light Hiking Crew Socks. These socks are built for performance in the highest degree, making them ready for any adventure on your list. COMFORTABLE FIT: The Kids?? Striped Light Hiking Crew Socks feature premium construction and materials along with a flat knit toe seam for a comfortable, secure overall fit. DURABLE WEAR: The Kids?? Striped Light Hiking Crew Socks feature a supportive, elasticized arch brace, offering all-day comfort for any adventure. LIGHT CUSHION: The minimal cushioning on the Kids?? Striped Light Hiking Crew Socks allows you to wear these performance socks on various trails and road terrains without discomfort. Whether you are biking, running, skiing, or hiking, these socks will provide you with padded comfort during any season. CARE INSTRUCTIONS: Comprised of 58% Merino Wool, 39% Nylon, and 3% Elastane, the Kids?? Striped Light Hiking Crew Socks should be machine washed inside out in warm water and tumble dried on low. These socks should not be bleached, ironed, or dry cleaned.