Go ahead, take the longer loop, the SmartWool Men's Brilliant Hike Medium Crew Socks want you to. With WOW technology, this hard-working sock has an elasticized arch brace and a flat-knit toe seam that you'll forget all about. Features: Reinforced sole for maximum comfort and durability WOW Technology: More Merino in high-impact and high-wear areas helps reduce shock and abrasion, giving you more comfort and longer lasting Merino wool benefits Crew height Medium/Full cushioned 3x1 ribbed leg Sizing clearly indicated on the sock Flat knit toe seam Elasticized arch brace Knit in USA: 69% Merino Wool/30% Nylon/1% Elastane Men's Sizing (Shoe Size Reference): M: 6-8.5 L: 9-11.5 XL: 12-14.5