Perform with the power and comfort of ZQ-certified Merino wool in Smartwool's Hike Light Cushion Crew socks—formerly known as PhD® Outdoor. They've updated their best women's hiking socks to include more sustainable materials with the addition of recycled nylon, improved durability and mesh zones, and an even more perfect fit. But, don't worry. The fan-favorite sock technologies aren't going anywhere—offering you all-day comfort and natural performance in a women's-specific fit. A crew height helps add coverage on the trails and light cushioning along the entire bottom of the foot helps keep you comfortable when the ground isn't. Take care of your feet with Smartwool's best-fitting, best-feeling hiking socks. Fit and Design: 7” crew height provides ample coverage on the trails Additional body-mapped mesh zones for added breathability Comfort welt with ‘stay put’ fit Virtually Seamless™ toe for enhanced comfort Updated body-mapped mesh zones help maximize breathability without sacrificing the perfect fit Women's specific fit Cushioning on the entire bottom of the foot Technology: Indestructawool™ technology with extended durability zones 4 Degree™ elite fit system for a dialed-in, performance-oriented fit Virtually Seamless™ toe features smoothed out toe seams for ultimate in-shoe fit and comfort Shred Shield™ helps reduce wear from toes Additional Details: Machine wash warm, inside out Do not bleach Do not iron Do not dry clean