SmartWool Men Sock Sizes
Sock Size	US Men's Shoe Size	US Women's Shoe Size
M	6-8.5	N/A
L	9-11.5	N/A
XL	12-14.5	N/A

Sock Geek Says:

Moderate under foot cushioned sock that is built on SmartWool's Ultra Light platform. Perfect for all types of trail running as well as long runs on hard surfaces (i.e. concrete).

Built on SmartWool's patented 4-Degree Fit System for an all day performance fit.  WOW Technology™ in High Density Impact Zones to reduce shock & abrasion.  SmartWool inside for moisture, temperature and odor control.  Durayarn reinforcement for added comfort and durability.  Strategic mesh zones for maximum ventilation.  All the great performance benefits of wool including it's a renewable resource!

SmartWool Trail/Outdoor Sock Specs

Sock Fibers: