- These are smarty socks that feature Smartwool's 4 Degree® elite fit system, Indestructawool™ technology for superior durability, and a Virtually Seamless™ toe. The Smartwool Women's PhD® Run Ultra Light Micro is a woman-specific mesh ventilation zones that provide ultimate temperature and moisture regulation where female runners need it most.
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48% Merino Wool, 48% Nylon, 4% Elastane.
PhD®® built for Performance in the Highest Degree.
4 Degree™ Elite Fit System for a dialled, performance-oriented fit with flex zone at the ankle joint.
Indestructawool™ technology features a patent-pending construction method for exceptional durability and comfort.
Mesh ventilation zones provide optimum moisture management and maximum breathability. Shred Shield helps reduce wear from the toe.
Virtually Seamless™ toe for enhanced comfort.
Achilles tab designed to prevent the sock from slipping down into footwear.
Made in the USA of Imported Yarns.
Machine wash warm inside out. Don't bleach, iron, or dry clean. Tumble dry on low. Click here to learn more about washing your wools.
Micro (3.6cm overall height).
Ultra-Light Cushion with minimal cushioning for maximum next-to-foot performance without added bulk.
Women's specific fit; narrower heel and slimmer fit.
True to the size recommended in the size chart.
Love these for running, because they fit snugly and don't move. Additionally, they are also lightweight and comfy.