The PhD Outdoor Light Crew features ReliaWool™ Technology for improved durability in the heel and toe and the 4 Degree™ Elite Fit System, to keep the sock in place and giving you all-sport versatility.
4 Degree™ Elite fit system uses two elastics for greater stretch and recovery to keep the sock in place
Patent pending ReliaWool™ technology in high impact areas provides longer lasting protection to keep feet comfortable
Strategically placed mesh ventilation zones provide ventilation for temperature and moisture management
Flat knit durable toe seam for high burst strength