Smartwool Men's PhD Running Ultra Light Micro Socks
4 Degree™ elite fit system uses two elastics for greater stretch and recovery. Run-specific fit. Patented ReliaWool™ technology in high impact areas increases durability. Mesh ventilation zones designed around a man’s foot. Virtually seamless toe. Achilles tab. 200 needle construction provides highest knit density while maintaining ultra light weight. 1.5" overall height. Knit In USA Of Imported Yarn: 50% Merino Wool, 45% Nylon, 5% Elastane.