Made from Thermolite with insulating fibers, these socks provide gentle compression and moisture wicking for warm, dry, happy feet. Cushioned shin and sole protect your little one from bumps and bruises from top to bottom. URfit® System provides arch support and memory knit construction Vented panels remove moisture and keep you dry Reinforced toe and heel add durability and longer sock life Cushioned shin and sole absorb shocks and insulate Smooth, flat comfort toe seam 55% Thermolite® EcoMade Polyester, 43% Nylon, 2% Spandex Style #5109