Stance Men's Rival Merino Wool Calf Arch Support Snowboard Sock 36% Polyester, 24% Wool, 18% Spandex, 9% Cotton, 7% Elastane, 6% Nylon Imported Machine Wash Natural wool fusion blend and breathable performance mesh Dry low-gore seams for dynamic fit and engineered ankle cushioning Reinforced toe/heel and air channel cushioning Engineered arch support and flat toe seam Toe box oven to keep your toes warm