Sizing is off.
Verified Buyer Reviewed by Legal Eagle from Topeka, Ks on Thursday, November 30, 2017
These are great Smartwool socks BUT the sizing is way off on this particular model. I wear 7.5-8 shoes and have numerous size Medium in Smartwool. These are too short--someone with a 9.5 foot, which is supposed to wear a Medium per their chart, could not possibly wear these. I returned them for size Large, hope that works.