Here's what other sites are saying:
With SmartWool's new 4 Degree Elite Fit System and ReliaWool high-density impact zones, PhD Toe Socks Micro deliver more comfort with an improved fit and greater durability. Great as a thin first layer with Vibram FiveFingers footwear.
2NDS . Designed to pair up with deconstructed footwear, SmartWooland#39;s PhD Run toe socks treat each individual toe -- as well as the rest of the foot -- to the warm, moisture-managing comfort of lightweight merino wool. Available Colors: ORANGE, BLACK, LIGHT GREY, SILVER, ARCTIC BLUE, PERSIAN RED. Sizes: S, M, L, XL, XS.
- Sierra Trading Post