Find your comfort zone on every hike with Smartwool Women's Hike Light Cushion Low ankle socks. Formerly known as PhD® Outdoor socks, these improved hiking socks are packed with all their tried-and-true sock innovations, like the Indestructawool™ technology for enhanced durability, 4 Degree™ Elite Fit System and women's-specific fit, and Virtually Seamless™ toe for even more comfort. They've extended durability zones and updated mesh areas to help maximize breathability without sacrificing the perfect sock fit. And soft responsibly sourced, ZQ-certified Merino wool handles the rest—working hard when you do. With a low ankle height that pairs perfectly with your low-cut hiking shoes, it's easy to stay comfortable on even the longest, most advanced hikes.