Smartly built for female runners, PhD Run Ultra Light Micro Socks deliver SmartWool's 4 Degree elite fit system, ReliaWool durability, a virtually seamless toe, and mesh ventilation zones.

• Ultralight cushion: minimal cushioning for maximum next-to-foot performance without added bulk
• Overall height: 1.5 in.; narrower profile for perfect women-specific run fit
• Blend of merino wool, nylon, and elastane
• SmartWool delivers soft, itch-free comfort, even foot temperature, moisture management, and odor control
• 4 Degree Elite fit system uses two elastics for greater stretch and recovery to keep the sock in place and improve fit
• Fit bands wrap and support the foot for more comfort, faster flex and recovery
• ReliaWool technology in high-impact areas provides longer-lasting protection to keep feet comfortable
• Mesh ventilation zones designed specifically for female runners provide optimal temperature regulation and moisture management
• Virtually seamless toe
• Achilles tab
• 200-needle construction provides highest-knit density, while maintaining ultralight weight
• Knit in the USA of imported yarn