Smartwool Womens Smartwool Green PhD Run Ultra Light Micro Large BM US

The SmartWool PHD Run Ultra Light Women's Micro Running Sock features the new 4 Degree Elite Fit System, which uses two elastics for superior stretch and recovery, keeping the sock in place. The bi-elastic fit bands provide faster flex and recovery throughout the foot; in the ankle band, the upper instep band, the lower instep band, and the arch band. ReliaWool Technology makes up the higher impact areas of the sock, the toe and the heel, to provide long lasting protection and to keep your feet comfortable, whatever the weather. Mesh vent zones are features on the upper of the sock, allowing your foot to breathe naturally. The sock features a low-profile and durable toe, which is virtually seamless; this eliminates the chance of irritation.