Smartwool Womens Ski Zero Cushion OTC Socks Features: Indestructawool™ technology for enhanced durability 4 Degree™ elite fit system for a dialed-in, performance-oriented fit Shred Shield™ technology reduces wear from toes Wider welt for secure fit and comfort Body-mapped mesh zones for added breathability Women's specific fit: narrower heel and slimmer fit Weight: 0.132 lbs Country of Manufacture: United States Womens Ski Zero Cushion OTC Socks