Smartwool Mountaineering Extra Heavy Crew. Extra-heavy cushioning will keep your feet warm and dry when you're mountaineering, ice climbing or multi-day backpacking. Arch brace holds the sock in place, and a flat-knit toe seam will keep you comfortable.
Knit in USA of Imported Yarn: 82% Merino Wool, 17% Nylon, 1% Elastane
WOW™ Technology in reinforced sole for maximum comfort and durability
2x1 ribbed knit cuff
Sizing clearly indicated on the sock
Flat knit toe seam
SmartWool® Fit System with arch and ankle support