Merrell Women's Encore Footie Socks (Pack of 2) 57% Merino Wool, 33% Nylon, 8% Nanoglide Nylon, 2% Lycra Elastane Made in US Designed specifically to fit Encore footwear series NanoGLIDE Technology is plaited in the toe for added durability Elasticized to fit arch comfortably Designed specifically to fit Encore footwear series