Smartwool Kids The primary materials that compose this product contain a minimum of 20 percent recycled content. Designed for a perfect fit on the foot and in the shoe, the Smartwool® Kids Hike Light Cushion Hiking Bear Crew Socks will help your kids' feet feel comfy from the trailhead to your destination. Because they're made from Merino wool, they offer natural odor control, breathability, and durability. Plus, they're made with a flat knit toe seam and an elasticized arch brace for comfort and support, which will help ensure a happy hike. Regular fit and pull-on style. Light cushioning. 55% Merino wool, 39% recycled nylon, 6% nylon. Machine washable. Made in the USA. View Zappos.com Glossary of Terms Smartwool Kids Hike Light Cushion Hiking Bear Crew Socks (Toddler/Little Kid/Big Kid)