Bring the natural performance features of responsibly sourced ZQ-certified Merino wool with you on every hike in the Smartwool's Women's Hike Light sock (formerly known as PhD Outdoor). Thermoregulation, sweat management, and odor resistance join forces to help keep you comfortable all day long, while Smartwool's innovative sock technologies and light cushioning along the entire bottom of the sock help you take care of your feet on every hike. The construction has been updated to be more sustainable (with the addition of recycled nylon), more durable, and more breathable - all without sacrificing that women's-specific, tailored-to-you fit, so you can tackle more trails and enjoy more summits.