Your little ones will love these monkey sock inspired socks. These aren't your crafting socks though! They're made from soft, sustainable Merino wool and offer great fit and comfort-enhancing features. URfit??? System provides arch support and memory-knit construction. Smooth, flat knit construction & toes seams provide comfortable and supporting cushioned sole and toe. 54% nylon, 25% Merino wool, 14% acrylic, % polyester, 2% spandex. Lightweight.