Nike Sock Sizes
Sock Size	US Men's Shoe Size	US Women's Shoe Size
M	6-8	7-10

Sock Geek Says:

Designed to cushion impact while Nike Sensory Enhancement Technology (S.E.T.) heightens awareness of foot and ankle position to help control pronation and promote a neutral, stable landing and toe-off.  Footstrike cushioning is aligned with pressure patterns of the runners'  foot to put comfort exactly where it's needed.  High-Strength Arch Support helps alleviate foot fatigue while Anti-Blister Construction consisting of two layers of low-friction yarn helps reduce heat build up.  Left/Right specific fit for maximum comfort and performance.

Nike Structure Running Sock Specs

Sock Fibers:

53% - Polyester
44% - Nylon
3% - Spandex