The RUNNING sock was the first Double Layer product in the WRIGHTSOCK line. It was highly recommended by many marathon runners and triathletes that demand a sock to help prevent blistering under extreme situations! The Running II continues the great tradition started by the Original Running sock and adds a Stabilizer Zone in the midfoot for even better comfort and support.
Moisture: 100% Coolmax to wick moisture, keeping feet dry
Heat: Coolmax not only wicks moisture, it also disperses heat
Friction: Double layer design eliminates 90% of friction on your skin.