FREE SHIPPING
Free Shipping! On Orders Over $50 Details.
But fear not - there is plenty to explore...
Shop all Smartwool Shop sale SmartwoolMEMBERSHIP
Earn up to 10% back in rewards. Learn more. Join Free.
EASY RETURNS
Take up to a full year to return your item! See our Return Policy.
LOWEST PRICE GUARANTEE
Find a better price? We’ll beat it by 5%. See our Price Match Policy.
Having the right pair of socks can make or break your upcoming run. The Smartwool PhD® Run Ultra Light Low Cut Socks are comfortable, breathable, and ready to help you reach for the podium.
49% Merino Wool / 47% Nylon / 4% Elastane
Low Cut – 2.25" Overall Height
Ultra Light Cushion – Minimal cushioning for maximum next-to-foot performance without added bulk.
4 Degree® Elite Fit System – Uses two elastics for greater stretch and recovery to keep the sock in place.
Indestructawool™ Technology – Indestructawool™ technology features a patent-pending construction method for exceptional durability and comfort.
PhD® – Built for performance in the highest degree.
Mesh Venting – Mesh ventilation zones provide optimum moisture management and maximum breathability.
Shred Shield – Shred Shield helps reduce wear from toes.
Women's Specific Fit – A narrower profile provides the perfect women's specific fit.
Made in the USA