This Smartwool all-purpose, three-season outdoor sock is perfect for rugged hikes or less intense walking. They keeps feet dry and happy for miles of switchbacks, scrambles, and climbs. Merino helps move moisture and regulate body temperature, while medium cushioning gives tired feet extra padding. An arch support and flat-knit toe seams add extra comfort. WOW technology in reinforced sole for maximum comfort and durability. 3 x 1 ribbed leg. Sizing clearly indicated on the sock. Flat knit toe seam. Elasticized arch brace holds sock in place. Knit in USA. 72 Merino wool, 27 nylon, 1 elastic.