SmartWool Kids' Wintersport Stripe Socks 72% Merino Wool, 27% Nylon, 1% Elastane (Fabric Type) Knit in USA (import Designation) Medium Cushion: Medium cushioned foot and leg for high impact absorption and ultimate warmth (Key Product Features) Medium full cushion leg and sole (Key Product Features) (Key Product Features) Flat knit toe seam, Sock Height: Over the Cal and Style: SW0SW198