The Smartwool PhD Outdoor Light Crew Socks are designed for women who want a combination of comfort and performance on the trails. These socks are made with a blend of merino wool and synthetic fibers, providing excellent moisture management and temperature regulation. The light cushioning offers impact protection without sacrificing a close fit. The 4 Degree Elite Fit System ensures a secure and comfortable fit, while the flat-knit toe seam reduces irritation. Whether you're running on rocky terrain or muddy trails, these socks will keep your feet happy and blister-free.