*The ideal balance of protection and style meet with the run-ready Smartwool® PhD® Run Ultra Light sock!
*Sold in a one-pair pack.
*Low-cut sock in a wool-nylon blend.
*Run-specific fit.
*200 needle construction provides highest knit density while maintaining ultralight weight.
*PhD® technology offers performance to the highest degree.
*4° Elite Fit System uses two elastics for greater stretch and recovery to keep the sock in place.
*Indestructawool™ technology features a patent-pending construction method for exceptional durability and comfort.
*Mesh ventilation zones provide optimum moisture management and maximum breathability.
*Ultralight cushioning is ideal for varied trail and road terrain.
*49% merino wool, 47% nylon, 4% elastane.
*Machine wash warm, tumble dry low.
*Made in the U.S.A. with imported materials.