The PhD Outdoor Light Crew is SmartWool's most versatile outdoor sock to date. The lightweight, half-cushion sole is highly durable and shock absorbant. Featuring the 4-Degree Fit System and new WOW (Wool on Wool) technology, this sock is perfect for cool light hikes and winter biking and trail running.
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 the longer lasting protection to keep feet comfortable
Flat-knit durable toe seam for high burst strength
Light half-cushioning for comfort and shock absorption
Strategically placed mesh ventilation zones provide ventilation for temperature and moisture management