Perfect fit. Powerful durability. That's what you get when you put on the responsibly sourced Merino wool women's Hike Light socks. Formerly known as PhD® Outdoor, these socks feature top sock innovations and women's-specific fit, updated mesh zones, and increased durability, Smartwool has upgraded these hike socks to help you push any summit or enjoy any trail in absolute comfort. Light cushioning along the entire bottom of the foot offers a snug fit in your favorite low-cut hiking shoes. And the addition of recycled nylon makes for a more sustainable sock construction. The Women's Smartwool Hike Light Cushion Ankle Sock. Features Women's specific fit Comfort welt with 'stay put' fit Virtually Seamless™ toe for enhanced comfort Additional body-mapped mesh zones for added breathability 4 Degree™ elite fit system for a dialed-in, performance-oriented fit Indestructawool™ technology with extended durability zones Specifications Height: Ankle ~ 3.25 in Cushion: Light Cushion Origin: Made in USA of Imported Yarn Materials 55% Merino Wool 11% Nylon 32% Recycled Nylon 2% Elastane *Specific percentage of recycled nylon will vary during the transition to 100% recycled nylon in future seasons Care Machine Wash Warm, Inside Out Do Not Bleach Do Not Iron Do Not Dry Clean