- Color: Black Wool Hiking Socks- 70% Merino Wool, 25% Polyester, 5% Spandex- High Quality : The kids hiking socks is blend of premium merino wool. These socks are soft comfortable, lightweight, wearable and sweat-wicking.- Size : There are two sizes to choose,4-7 years, 8-12 years. They are suitable for hiking , running ,skiing , gym class ,playing outdoor or other activities.- Anti-Blister & Comfortable : Kids Socks have thick loops on the toes, soles and heel to provide cushioning. Cushion designed to minimize the friction between the feet and shoes. You won't feel any discomfort with these kids socks.- High Performance : These kids wool running socks have stretchy cuff and arch support, which can have great compression support to reduce fatigue, protect the Achilles tendon, improve the blood circulation, and keep socks fit snugly. its moisture wicking properties help keep feet fresh and dry.- GREAT GIFT : This winter wool socks are perfect presents for kids.You can choose it as your or your friend's son, the daughter's birthday or Christmas gift.