Smartwool put all of its smarts into these new and improved running socks that feature the 4 Degree Elite Fit system, Indestructawool technology for superior durability, and a Virtually Seamless™ toe. Women's-specific mesh ventilation zones provide ultimate temperature and moisture regulation where female runners need it most.

• 49% Merino Wool/47% Nylon/4% Elastane
• PhD®: Built for Performance in the Highest Degree
• Women's Specific Fit: Narrower profile provides the perfect women's-specific fit
• 4 Degree™ 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 Venting: Women's-specific mesh ventilation zones provide additional breathability and moisture management
• Ultra Light Cushion: Minimal cushioning for maximum next-to-foot performance without added bulk
• Sock Height: Micro
• Virtually Seamless™ toe
• Achilles tab
• Machine Wash Warm, Wash Inside Out. Do Not Bleach. Tumble Dry Low. Do Not Iron. Do Not Dry Clean.
• Made in USA of Imported Yarns