Designed for serious female runners who demand durability without compromise, the Smartwool Run Zero Cushion Low Ankle Sock transforms your training experience across trails, pavement, and treadmill miles. This women's-specific merino wool running sock features Smartwool's game-changing Indestructawool technology strategically placed in high-wear zones, ensuring these socks keep pace with your most ambitious training schedules while the 4 Degree Elite Fit System locks everything in place with four-point support around your ankle, instep, and arch. The zero-cushion profile delivers that pure ground connection serious runners crave, while the Virtually Seamless toe construction and breathable mesh zones keep you comfortable through every mile, making these the reliable training partners that help make those long runs feel effortless.