The primary materials that compose this product contain a minimum of 20 percent recycled content. Sometimes all you need is a classic trail sock and these Smartwool Performance Hike Full Cushion Crew socks have what you need to stay comfortable on any adventure. Crew socks that sit at the calf. Sold as one-pair pack. Utilizes lightweight, full cushioning at the shin and sole of the foot to provide warmth and a little impact absorption. Bracing on the arch provides additional support for all day comfort. Flat toe seam helps reduce chafing and provide all day comfort. Style Number: SW001618207-210 (Chestnut), Style Number: SW001618001-001 (Black), Style Number: SW001618039-050 (Light Gray). 62% Merino wool, 24% recycled nylon, 12% nylon, 3% elastane. Machine wash inside out, tumble dry. Made in the USA. If you're not fully satisfied with your purchase, you are welcome to return any unworn and unwashed items with tags intact and original packaging included.