Asics Sock Sizes
Sock Size	US Men's Shoe Size	US Women's Shoe Size
S	N/A	6-7.5
XL	12-14	N/A

Sock Geek Says:

After the great success of the women's Hera Bamboo running sock, Asics has now introduced a bamboo and synthetic blend run sock for everyone.  Using patented Hydrology yarn (see content below) the Ecoline features the soft fibers of bamboo, an enduring natural resource, to deliver a sock with outstanding thermal regulation and quick evaporation.  The sock carries the standard features one expects from a great Asics sock:  "Y" heel gore to reduce slippage, Asics exclusive ankle fit design, arch support band for comfort, mesh air channels for ventilation, and the iconic Asics logo on the back rib. Great for your feet and for the environment! 

Asics Ecoline Sock Specs

Sock Fibers:

50% - Bamboo
25% - Recycled Polyester
20% - Nylon
5% - Spandex