Featuring a versatile, multi-sport design, Smartwool PhD® Outdoor Light Mid Crew includes ReliaWool™ technology for superior durability in high wear areas and the 4 Degree™ elite fit system to keep the sock in place. Now available in mid crew height.
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
Strategically placed mesh ventilation zones
Flat knit durable toe seam for high burst strength