They are advertised as Over-The-Clf. You are NOT larger than a calf, maybe when you are four feet tall. They hit me mid calf which is very uncomfortable and not what was advertised. And I ordered XL.
Pros
COMPRESSION HELPS STIMULATE BLOOD FLOW: The Medium Ski has a ventilated upper and appropriate compression throughout the leg and over the calf to stimulate blood flow and energize your legs while you wear them.