Merrell Women's Flourecien Socks, Medium, Ash 57% Merino Wool, 26% Nylon, 12% Nanoglide Nylon, 5% Lycra Elastane Made in US Zoned cushioning in heel and forefoot NanoGLIDE Technology is plaited in the toe for added durability Arch band support to fight fatigue All over mesh, diamond patterned inlay Seamless toe closure for comfort