The Smartwool Women's PhD Outdoor Light Crew Socks are perfect for women who love backpacking. These socks are made with high-quality merino wool, which provides excellent moisture-wicking and temperature regulation properties. The PhD Outdoor Light Crew Socks feature a 4 Degree Elite Fit System, which ensures a secure and comfortable fit. They also have targeted cushioning in the heel and toe areas for added comfort and durability. These socks are designed with a flat-knit toe seam to prevent irritation and blisters. Whether you're hiking through rugged terrain or exploring new trails, these socks will keep your feet dry, comfortable, and blister-free.