FoxRiver Women's Red Heel Monkey Swings Merino Wool Knee-High Socks 62% Nylon, 28% Merino Wool, 6% Acrylic, 2% Polyester, 2% Spandex Made in US Memory-knit construction keeps shape and fit Spandex compression holds sock in place Smooth, flat comfort toe seam Original Rockford Red Heel Socks Ultra-Lightweight Merino wool