•Thin, lightweight sock for a low profile feel •Reliawool technology is placed in high impact areas for lasting durability •4Degree Elite Fit System combines 2 elastic types paired with wool for greater stretch that improves performance fit •Men's-specific mesh ventilation zones for ventilation and comfort •Virtually seamless toe for reduced irritation •Achilles tab and cupped heel for a better fit that keeps the sock in place •200 needle construction for lightweight, high-density cushioning •1.5" micro height

Fabric •50% Merino Wool / 45% Nylon / 5% Elastane

Slip on the Smartwool PhD Run Ultra Light Micro Men's Socks for a breathable, comfortable feel. The 4Degree elite fit system uses two different elastic materials for greater stretch, while mesh ventilation zones specifically designed for men provide natural moisture, temperature, and odor control. A cupped heel with an Achilles tab keeps the sock in place for a reliable fit.