SmartWool PhD Ski Light Pattern (2014 Closeout) - Women's 4 degree fit system uses two elastics for greater stretch and recovery to keep sock in place Patented ReliaWool technology in high impact areas provides longer lasting protection to keep feet comfortable Strategically placed mesh ventilation zones provide ventilation for temperature and moisture management 13" overall height 59% Merino Wool, 39% nylon, 2% elastane