Perfect for your little adventurer! Made with anti-stink, super-soft Merino and a flat toe seem to keep tootsies comfy, Smartwool's Kids' Hike Light Crew is perfect for any adventure. 58% Merino Wool39% Nylon3% Elastane. Light Cushion: The ideal cushion for varied trail and road terrain. Sock Height: Crew. Designed to fit perfectly in kids' shoes without additional bulk. Sizing clearly indicated on the sock. Flat knit toe seam. Elastic arch brace. Made in USA of Imported Yarns.