Smartwool Trekking Heavy Crew Sock - Men's

Heavy full-cushioning provides shock absorption, offers insulation against the elements, and supports under weighty loads. An arch brace holds the sock in place and adds additional support.   Features 77% Merino Wool, 22% Nylon, 1% Elastane WOW™ Technology in reinforced sole for maximum comfort and durability 3x1 ribbed cuff Sizing clearly indicated on the sock Flat knit toe seam Elasticized arch brace Sizing: ADULT SOCKS (shoe size reference) Sizes US Men US Women Euro UK Small 3-5.5 4-6.5 34-37 2-4.5 Medium 6-8.5 7-9.5 38-41 5-7.5 Large 9-11.5 10-12.5 42-45 8-10.5 X Large 12-14.5 N/A 46-49 11-13.5