Sockwell Women's Incline Inspire Athletic Lo Quarter Socks 33% Merino Wool, 33% Bamboo Rayon, 28% Stretch Nylon, 6% Spandex Made in US Breather Panel to Wick Moisture Away Reinforce Y-Heel and Micro Cushion Sole for Comfort and Support Extended Ach Brace for Comfort and support Seamless Toe Closure to Help Prevent Blisters Spandex Throughout the Sock