200 needle construction provides highest knit density while maintaining ultra light weight</br>Virtually seamless toe - Achilles tab</br>1.5" overall height - Sock Height: Micro</br>Narrower profile provides perfect women's-specific run fit.</br>Style: SW0SW210 - Made in USA of Imported Yarn</br></br>Product Description</br></br><b>PhD:</b> Built for Performance in the Highest Degree<br><br><b>4 Degree Elite Fit System:</b> Uses two elastics for greater stretch and recovery to keep the sock in place<br><br><b>ReliaWool:</b> Patented ReliaWool technology in high impact areas provides superior durability<br><br><b>Mesh Venting:</b> Men's-specific mesh ventilation zones provide additional breathability and moisture management<b><br><br>Light Elite Cushioning:</b> Maximum impact protection with targeted cushioning on the ball and heel of the foot. Designed specifically for runners.<br><br>Our best fitting?? most advanced run socks yet?? we packed years of testing?? prototypes and running smarts into these socks. Featuring Light Elite cushioning in the ball and heel of the foot for ultimate shock absorption with minimal i