Find your comfort zone on every hike with Smartwool's Women's Hike Light Cushion Low ankle socks. Formerly known as PhD Outdoor socks, these improved hiking socks are packed with all Smartwool's tried-and-true sock innovations, like Smartwool's Indestructawool technology for enhanced durability, Smartwool's 4 Degree Elite Fit System and women's-specific fit, and Smartwool's 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.