Hike farther in more comfort with SMARTWOOL's Hike Light Cushion Crew—formerly known as PhD® Outdoor. This hiking sock offers a women's-specific fit and debuts new enhanced features, like improved mesh zones, extended durability, and a more sustainable construction with the use of recycled nylon. The tried-and-true sock technologies work as you do—helping to take care of your feet on any trail. A crew height helps add coverage and light cushioning on the entire bottom of the foot helps keep you comfortable when the ground isn't. Experience the power and natural performance of ZQ-certified Merino wool with these Smartwool® hiking socks.