The SmartwoolHike Light Cushion Crew, formerly PhD Outdoor, is designed to help take care of your feet and elevate every hike. These updated hike socks include more sustainable materials, improved durability and mesh zones, and an even more perfect fit. Smartwools top sock technologies and womens-specific fit work together with responsibly sourced, ZQ-certified Merino wool to help you performnaturally. Recycled nylon brings more sustainability to the sock construction, while light cushioning along the entire bottom of the foot paired with a crew height helps you get there on the most rugged trails and in any hiking shoe/boot. Bring more comfort on every hike with Smartwool.