Their growing feet deserve the added comfort of the Smartwool Striped Medium Light Crew. Sold as a one-pair pack. Crew sock sits at the calf. Medium cushion design to absorb impact on the trail Elasticized arch brace. Flat knit toe seam. 54% Merino wool, 44% nylon, 2% elastane. Machine wash warm, tumble dry low. Made in the U.S.A. from imported yarn.