The Smartwool PhD Outdoor Light Crew Socks are designed for women who want a combination of comfort, durability, and performance on the trails. These socks are made with a blend of merino wool and synthetic materials, providing excellent moisture management and temperature regulation. The light cushioning offers impact protection without sacrificing a close fit. The crew length provides extra coverage and protection for your ankles. These socks also feature a 4 Degree Elite Fit System, which ensures a secure and comfortable fit. Whether you're running on rocky terrain or muddy trails, these socks will keep your feet happy and blister-free.